Torque Converter Vibration Under Load

Subtransmission circuits and substations are located near to high-load concentrations, usually in urban areas. Our existing GEN1 series supports up to 2016 These converters are best suited in applications where a stock catalytic converter was not offered from the OEM (vehicle years 1973 and older) as. ] Ballooning: Prolonged operation under excessive loading, very abrupt application of load, or operating a torque converter at very high RPM may cause the shape of the converter's housing to be physically distorted due to internal pressure and/or the stress imposed by. Drag Racing Torque Converter 8", 1965-90 GM TH 350/400 Small Bolt Pattern (4500-5000 Stall Speed) JavaScript seems to be disabled in your browser. Shop Parts; Cart; Login / Register; Order Status (888) 743-9375; Menu. Urban Classic 1131 Brooklyn 12 Light 31. Torn CV boot replaced under warranty. For static analysis of torque converter components centrifugal load and fluid pressure load were considered. If I accelerate lightly (read: grandma speed), it gets up to speed fine, but if I give it gas at any point, at any speed the truck shudders pretty hard and there is very little. Software Sports, Fitness & Outdoors Tools & Home Improvement Toys & Games Under ₹500 Video Games Watches. Jump to Latest Follow. Torque Converter Clutch Shudder and Vibration and the Tech2Tech video "Interpreting Torque Once it is confirmed that the judder is coming from the torque converter, flush the transmission Hold the engine speed at 3,000 rpm without load (in Park or Neutral) until the radiator fan comes on, then. shudder vibration or buzz-like sound may be most noticeable during light acceleration where partial application of the torque converter clutch (TCC) in 3rd, 4th, or 5th gear occurs. These are the steps you will need to take when setting up the adapter for the first time. It only happens when the car is accelerating from a stop and the noise and vibration stops at 10 miles per hour. I just hope its not the transbut I am reading on the fourms and other sites that my symptoms may also be Torque Converter related (shudder/vibration). Torque, moment of force or moment, is the tendency of a force to rotate an object about an axis, fulcrum, or pivot. Maybe you have a bad propshaft bearing. Indicative of DTC performance with induction motors is torque response time (to a 100% torque reference step) that approaches the motor’s electrical time constant limit. This should help my driveability with my AOD/4. Place it with the bolt holes face-up in an appropriately sized bucket or drain pan and let it sit for First, hold the torque converter horizontally and face down (bolt holes facing towards the ground) so that the fluid will not drain back out. Torque Converter Clutch Solenoid. In a GM vehicle, a torque converter problem (in a 4 speed Turbohydromatic with o/d) the vibration occurred at abut 45 to 50 UNDER LOAD, like your problem. Contact the manufacturer directly for a quote. It's normal. Combines maximum rimpull while in torque converter drive with the efficiency and performance of Built to withstand the forces of high torque and impact loads, double reduction final drives provide Power ratings apply at a rated speed of 2,000 rpm for Stage V model engine when tested under the. Discussion in ' You will usually hear a clank when you hit the accelerator after coasting. A switching sequence model predictive direct torque control (MPDTC) of IPMSMs for EVs in switch open-circuit fault-tolerant mode is studied in this paper. More modern iterations of the torque converter may come with a lockup clutch. Ford sold me a small tube of, Motorcraft additive friction modifier, which did not work, or maybe I have not given it sufficient time. then they said they thought it was the torque converter lockup, so they cut the wire running to the lock up solenoid, so now my torque converter does not lock up, but the vibration is gone B+B or any other tranny experts, how bad is it for me to be driving around with the 4L80E and the torque converter lockup solenoid wire cut?. 10 219278a Comet Tav2 30 Series Sheave Stationary Half 3. Excessive vibration can occur for many reasons and can also cause overheating. Pump torque is the principal parameter used when performing torque converter and engine matching as it is directly equivalent to engine torque. It only happens when the car is accelerating from a stop and the noise and vibration stops at 10 miles per hour. Sounds like the lock up clutch is slipping. In the real world, you often see more than one force acting on an object to cause torque. The main gear is also longer to cater for the increased fuselage lengths of the -8/900 series and is constructed from a one piece. Typically it will happen on the motorway while gaining speed back to 70mph if you have slowed to 60ish while staying in 7th gear. automatic-transmission vibration torque-converter. The energy dissipated within the torque converter is minimized to enhance the fuel efficiency. What are synonyms for torque?. Under hard acceleration there is no vibration/shudder. > > >>loose engine mount(s) >>loose transmission mount(s) >>torque converter > > > I'd add slight engine misfire under load. On other hand, slipping. Vech is going into econ mode at that speed (3 cylinders) and the feeling is the torque in between gears (at that speed) Condition is normal. USB update rate. In first and second gear the throttle has to be at least 3/4 open and vehicle speed above a certain speed to lock. For the moment though, we will ignore the effects of the crankshaft’s inertia, changing dynamic clearances, as well as the flywheels’/torque converters’ mass and inertia. Happens 75 percent of the time and in first, second and reverse. Your wheels, tires, axles, driveshaft, transmission, clutch or torque converter and engine components are all rotating at a high rate of speed, and any one or more of these components can create a vibration if they are worn or out of spec. Under light acceleration your 2012-2014 Camry may shudder as the torque converter locks up. The reality is, the vibration(s) emanate from the Torque Converter, which is connected to your CVT and engine. The influence of gravity on the plane of the spinning disc causes the rotational axis to "deflect". The latter was more apparent with my '13 EcoBoost, as it just had robust torque with the 3. In 3rd or 4th gear under a load like when going up a decent hill, I can feel some shuddering or slipping of the torque converter. According to these reports, many drivers have had to flush their transmissions and, in some cases, replace their torque converters. Most torque converter shudders happen at about 45MPH. Has anyone had this problem before and know the potential causes? Chrysler group actually does not recommend flushing. As some have described, it was like going over rumble strips. In third and fourth gears the throttle only has to be open a small amount and meet the vehicle speed criteria. Under normal driving conditions it allows the engine to run while the car isn’t moving, but transferring power from the engine to the transmission when the. The stall stage is the initial phase of the torque converter wherein the load is provided with a sufficient amount of power to start and synchronize the speed between the pump and turbine. And I also noticed that there's also a pronounced vibration at around 1000 RPM as well. Some describe this as the "shudder" not really a shudder on mine, as low throttle I guess. Torque converters are comprised of five main components: the impeller, the turbine, the stator, a clutch, and the. Torque-optimized motors Stator outer diameter D [mm] Overall length = L + A + B Length of laminated core L [mm] Height of winding head A [mm] , B [mm] Hollow shaft H [mm] Large hollow shaft up to of outer diameter Outer diameter to mm Efficient. It can be used for winding control,load distribution under various motors dragging one load and other occasions. P0741 code definition Torque Converter Clutch Circuit Performance or Stuck Off What the P0741 code means The Powertrain Control Module (PCM) will set the P0741 diagnostic trouble code when it notices a difference between the rotational speed of the torque converter and the transmission input shaft that is greater than 200 revolutions per minute (RPM). Should a torque converter rattle Should a torque converter rattle. Torque converter shudder fells like a slight to heavy vibration in the transmission, and is usually accompanied by an interruption in power transfer. Adobe Acrobat Document 1. Normal cooler line pressure will range from 50 psi to 80 psi , under a load in drive. I had a issue on my duramax that I thought was the torque converter. USB update rate. There is no single torque wrench accurate for this wide range. I'm not trying to start a prolonged argument, but many people have complained that driving in 5th gear under very light load between 45mph-50mph, the RPMs pulse. If your 700r4 is having a problem with harsh vibration going down the road, it’s more than likely loose torque converter bolts, or a driveshaft that needs balancing. In high torque, high-load situations, the torque converter bears the brunt of the engines force. just my opinion. R1700G-2011-Global 2020-06-06T04:16:07-05:00 R1700G R1700G Underground Mining Loader Caterpillar Current ELECTRICAL 12V Power Supply in Cab Alternator, 95-amp Auxiliary Start Receptacle Battery Disconnect Switch, Ground Level Circuit Breaker, 80-amp Corrosive Protection Spray Diagnostic Connector Electric Starting, 24-volt Engine Shutdown Switches. Maxcapacity: >1000KN. Vibrations, caused by the ships engine, gear and propeller, truck suspension, road and railway surface, etc, occur in a wide range of frequencies and amplitudes. Park Tool TW-1 and TW-2 torque wrenches are beam-type. in gear or when gaining speed I have a REALLY bad vibration when idling in park. 154 1203 12 Beat The Creep Torque Converter Fluid Flow. What a Pandora's box this has lead to. It is felt when the accelerating from full stop as well as when accelerating from high speed to higher speed. In effect, this is two conversion stations on the same site with the dc transmission line inside the converter building. Startup during winter. wilwood, wildwood, willwood, bill wood, disc brakes, disk brakes, big brakes, bbk, brake conversion kit, bolt-on brake kits, calipers, carbon ceramic rotors, brake pads, pedal assembly, rotors, dynalite, dynapro, hats, hubs, line kits, master cylinders, pads, polymatrix, racing, hats, brake lines, superlite. A boost converter (step-up converter) is a DC-to-DC power converter that steps up voltage (while stepping down current) from its input (supply) to its output (load). Along with SRS airbags to protect occupants in the event of a frontal collision, the XL7 is loaded with functions that keep the driver informed and the vehicle safe and secure at all times. I had a shop swap out the Powerglide for a rebuilt Turbo 350 with a new torque converter. Comparison of motors characteristics. Mechanical energy, from a typically constant speed driver, is. The running capacitor integrated in the terminal box allows for operation under many demanding ambient conditions. Low vibration. Also, explore many other unit converters or learn more about torque unit conversions. I have 3300 miles now, the dealer talk to gm at 2000 miles when i took it in for the vibration. Vibration under load Under load (the more torque, the more shake), the front vibrates. However, the vibration is more noticeable when first starting out when it's cold, and when its under load, but it's always at 20-25mph. • To eliminate the possibility of front seal leaks, vibration, and premature bushing wear, all torque converters are tested for leaks, lock-up, concentricity, and balance. 68 caliber allows you to use rubber balls, pepper balls, chalk balls and paintballs, which can be shot individually or simultaneously from both barrels. My dealer said it could be a while before the have a fix. If I let off the gas pedal, the vibration will stop. If the RPM's stay high and the TC doesn't kick in you know there is a problem with the TC. It generally occurs at part throttle and light acceleration, between 15 and 50 miles per hour, just before the shift to one of the top gears where the converter reaches "lock-up. It's a cheap one bought for nearly $5 through Amazon. Importance of a Torque Converter. Any ideas what this could be. Rather than drop that much right away, I decided to pick up a transmission fluid filter kit, and put in some new transmission fluid and kit, which is a hell of a lot cheaper. Lift your spirits with funny jokes, trending memes, entertaining gifs, inspiring stories, viral videos, and so much more. 3" triple chrome rollbar 5 Black 6" KC Daylighter's 150w 4" A-bar, 2 Chrome KC Daylighters 100w Remote start Kenwood DDX60232BT & sat nav Talking. It's normal. have an 01 w/5. Loading Sign in to see your user information. Measuring and Machining of Ripples on Silicon Surface with. Rated converter stall speeds vary due to engine size, engine torque output characteristics, vehicle weight, camshaft, and other factors. just my opinion. Car has a vibration and stuttering noise that seems to come from the rear half of the car. This vibration happens parked and at each gear (as you increase in speed) at that certain RPM (under a load). Many translated example sentences containing "torque converter" - Russian-English dictionary and search engine The torque converter delivers smooth starts and better [] The users can see the motor is in forward rotation at constant speed when a sudden external load torque change and great. Other than the vibration, the only problem the trans exhibits is a slight hesitation in downshift at low speeds under a low load. In o/d or third when then converter is locked. If you hear clicking then you have a bad axle. Media in category "Torque converters" The following 21 files are in this category, out of 21 total. 154 1203 12 Beat The Creep Torque Converter Fluid Flow. I can feel the "vib" in the floor board and the gas pedal along with the shifter. It was found mostly behind the 3. полном открытии дроссельной заслонки. I had this issue a few years back and nissan replaced the torque converter under warranty. Naturally under load the machine will move slower. Torque Engineering and Design Menu. Continuously variable transmission - Wikipedia Hydrak had one major flaw: the oil supply for the torque converter was sealed within the converter itself and did not circulate via a pump, and also had no oil cooler. I'm having the exhaust looked at next week. Shop Parts; Cart; Login / Register; Order Status (888) 743-9375; Menu. At 80mph, it's smooth as butter. From the right counter-clockwise, you can see the cover (which bolts to the flexplate), the impeller pump (which slides over the transmission input shaft) the turbine, and the stator. It is common in many cars to intentionally slip the converter clutch a very small amount to dampen engine torsional vibrations while driving at lower power levels. more often then not when the vibration occurs it is when I am in 5th and have to slow to around 60 and then slowly speed up under load (up hill or pulling my small boat) and then I get the vibration. Therefore, the x axis affects how quickly the car shifts forward and back under braking and acceleration and how it rotates end over end in the air, the y axis affects how quickly the car The spring constant that is transmitted to the opposite wheel when under compression larger numbers are a larger force. The history of split torque transmissions and lockup torque converters for automotive applications Turbine speed tends to fall behind impeller speed any time load increases (for example, when going up a With the clutch engaged, Ultramatic also transmitted some drivetrain vibration that the torque. I at first thought a bad u joint so I rebuilt both shafts and the cv. Find Summit Racing® Torque Converters SUM-G2699 and get Free Shipping on Orders Over $99 at Summit Racing! Designed for stock and mildly hopped-up street vehicles, our Summit Racing® torque converters give you the extra stall speed that you need for quicker launches. The torque converter provides smooth starting without mechanical wear, and compensates automatically for various load conditions by providing the necessary output torque. - There is some sort of cavitation in the transmission/torque converter because of a lack of viscosity in the ATF or there is an air pocket in the transmission. TRANSMISSION TORQUE CONVERTER SHUDDER NOISE VIBRATION HARD SHIFTING FIX | SHUTTER FIX In this video we will explain how to fix transmission torque converter shudder in just a few minutes. Loose Torque Converter Bolts – This will create the same symptoms as the bad seals in that the converter is going to puke a bunch of ATF all over your garage floor, but you should also be feeling quite the vibration at speed. If TCC shudder is present, a vibration peak will appear at approximately 43Hz +/-3Hz. On the minimum coupling required for maximum theoretical. 2 (L86) – Truck and Utility 1 24279497 Torque Converter: 6. Under certain driving conditions, there is excessive vibration between 30 and 65 mph. I would next check the condition of the engine, transmission and transfer case mounts. They include hardened washers and 12-point heads that are only 7/16-inch in head size compared to the same 9/16-inch head on a standard bolt. Cat C15 Fuel Knock Under Load. Torque calculation tools. ●If the load is relay and inductive load, the load must be both ends against parallel fly-wheel diode. over the block and ancillaries for any vibration. 3L Z71 Torque Converter went bad after a long 172,000 miles. A vibration or shudder may be noted on acceleration. Foot-pounds Force Conversion Charts. We offer several examples of calculating the torque converters The reason for the torque converter repair is shudder and vibration during acceleration and shifts i. ABSTRACT A new concept of an electromagnetic torque converter for hybrid electric vehicles is proposed. 8L Essex V-6 and some 5. com with top-selling 1 brands. This is normal. This is called creep phenomenon. The HDS comes with a Picatinny rail under the barrel and a pressure indicator. Lockup torque converters were added to many newer-model vehicles to help with fuel economy. Most aftermarket one won't last over 2 years and can fail quite dramatically. The shudder/buzz condition may be due to the torque converter clutch and a “stick-slip” condition caused by contaminated transmission oil/fluid. I'll start with this one. If I step on the gas it goes away. It says it supports vibration on its description. Is there something that can be adjusted to try to tune out the shudder or slipping or whatever might be going on?. Idle Air Control (IAC) under speed error. If that lock-up clutch was slipping, you'd have a noticeable chatter for one or two seconds when that occurred; typically around 35 - 40 mph. But, I shall try. Sell Under Amazon Accelerator. The vibration can be felt throughout the whole car (if that makes any sense) - had the driveshaft rebuilt- still vibrates and did so prior to the rebuild. полном открытии дроссельной заслонки. I'd really appreciate any feedback from you guys!. If vibration or shudder occurs only in 1st or 2nd gear, or when brakesTown Car - Base Only 1995-97 F8VZ-7K177-AA. On a launch, it sometimes makes a. Home; Terms and Conditions. The vibration is likely the Torque converter lockup clutch chattering under load, which is going to cause accelerated wear, and the wear pattern caused during this chattering may tend to make the clutch chatter more likely or less likely to occur in the future. How to use the converter? 1) Enter a valid value into the input field below, 2) Select a unit from the "From" list below The torque units in the torque converter are dyne centimeter, dyne meter, dyne millimeter, gram centimeter, gram meter, gram millimeter, kilogram. My dealer has been great getting me in a loaner car, so no complaints there. You can look at the torque converter and try to loosen and rotate the position on the fleplate. With the vehicle at operating temperature, confirm the condition described in the Introduction. Media in category "Torque converters" The following 21 files are in this category, out of 21 total. Lexus Is250 Vibration At Idle. Typically it will happen on the motorway while gaining speed back to 70mph if you have slowed to 60ish while staying in 7th gear. 6 Flush Cooler Lines 4wd Truck. I'm wondering if the torque converter locks up around 40km/h (265 tires) and is slipping. The noise I hear I hear it all of the time, from 5 mph and up, and it will make it in every gear, as well as in/ out of lockup. Long endurance. P0724 Torque Converter/Brake Switch B Circuit High P0725 Engine Speed input Circuit fan circuit malfunction P1626 B(+) supply to Variable Load Control Module (VCLM) Air Condition (A / C) out of Self — Test range P1728 Transmission slip fault P1729 4×4 Low switch error P1740 Torque Control. Obviously my u-joints are fine, but if you drive the truck at cruising speeds your first thoughts would be driveshaft. Under high load, low RPM situations, such as accelerating in OD (torque converter locked up), there is a vibration, I can feel it through the floor and even up through the steering wheel. In place of a clutch, the car uses a torque converter to transfer power from the engine's flywheel to. They need to be able to quickly identify a malfunctioning torque converter or a lockup torque converter that fails to lockup. Does it stop shuddering after a shift? Accelerate through the 50 mph and see if the shudder going away corresponds to a change in rpm. [2-speed torque converter vehicle] Cornering Differences. Since the transmission is still engaged it is putting a modest load on the engine -- add to it the a/c compressor and possibly the alternator because the fan is drawing power, and yes, its quite a load on an engine that is running at necessarily low RPMs. Mike L's Trans Talk T. Within the converter, the oil serves to the power transmission according to the well-known hydrodynamic principle (see Chapter Torque converter 1. Comprehensive tabs archive with over 1,100,000 tabs! Tabs search engine, guitar lessons, gear reviews, rock news and forums!. It happens when I turn it on. In such lock-up clutches, torsional rigidity of the coil spring must be reduced in order to effectively dampen torsional vibration under small load conditions. Mark helpful. sounds like the torque converter case weld have split. Цепь управления регулятором холостого хода, перегрузка. Another 'first fix' would be a change of transmission fluid if you haven't done that recently. Gmc acadia torque converter shudder Gmc acadia torque converter shudder. direction that the liquid leave turbo change under the action of idler. The car has been back to the dealer 4x in the last 9 months in an attempt to fix this. A lot worse when towing. 2003 Mitsubishi MONTERO 03 - Torque Convertor > POWER TRAIN : AUTOMATIC TRANSMISSION : TORQUE CONVERTER [Part 103700 ] TSB No: 0323006 Replacement: 0123010 NHTSA ID: , October 01, 2003 Summary: torque converter shudder, surge, and/or vibration (possibly intermittent) when driving 35-50 mph at steady throttle. It is similar to running over a rough spot on the road or running over a cattle guard. (281 people reported this problem) Subaru Outback Vehicles With This Problem. I'll start with this one. Improvements in memory system for better stability under heavy load. There are a few basic guidelines to think about when selecting a torque converter. A guy line load detection System is used to measure the tension of the boom hoist wire rope with a load cell attached to the lower spreader. You will DEFINITELY notice a coil failure under heavy load and get an associated trouble code with it. Loading Method: Dynamic Load. The snub mount can definitely cause vibrations under load. Wheel shake when braking is almost certainly a disc issue and the screech will be calliper slider pin starting to seize, this will have caused the disc to get hot and this was probably what caused the disc to warp in the first place. New for 2018 - valve body exploded views, flexplates, torque converters, and transmission fluids!. Rated converter stall speeds vary due to engine size, engine torque output characteristics, vehicle weight, camshaft, and other factors. The torque converter is locking in at too low of an RPM and therefore trasferring the uneven firing of the engine pistons into a vibration that can be felt in the cab. The HDS comes with a Picatinny rail under the barrel and a pressure indicator. If the transmission torque converter is suspected a revised part is available to correct this concern. Torque-optimized motors Stator outer diameter D [mm] Overall length = L + A + B Length of laminated core L [mm] Height of winding head A [mm] , B [mm] Hollow shaft H [mm] Large hollow shaft up to of outer diameter Outer diameter to mm Efficient. The conditions under which the vibration occurs can be divided into four different categories: engine speed related, vehicle speed related, engine load related or random vibrations. Naturally under load the machine will move slower. As far as I know, the torque converter is a fairly simple device. Changed the shafts and it went away but still had very slight vibration on take off. Light but noticeable vibration/shutter for first 5-7 minutes of driving and felt slightly in steering wheel but evident on center console. I'll start with this one. Torque Converter Clutch. lateral force d. Especially since my last encounter with the drive shaft falling out due to the front u-joint busting. 154 1203 12 Beat The Creep Torque Converter Fluid Flow. Obviously my u-joints are fine, but if you drive the truck at cruising speeds your first thoughts would be driveshaft. Two things: Engine vibration, had a bad T. It is a 1/2" drive "click" type, adjustable wrench that accurately measures up to 150 ft. I'm wondering if the torque converter locks up around 40km/h (265 tires) and is slipping. For torque converters, the stator is located at the center, and has a fin design that reverses the direction of the fluid from the turbine back to the pump again. 80 lb/ft @ 8000 rpm. Joined Jun 21, 2008. The typical torque multiplication of a torque converter is about 2:1. These pieces work together in a fluid-filled housing. I told the tech about vibration and results of shaft swap and he said it was my torque converter slipping due to dirty fluid. Full Load Speed (Torque Converter) 2100 RPM: No Load Speed (Standard Clutch) 2060 RPM: No Load Speed (Torque Converter) In Sediment Bowl Under Fuel Tank: Fuel. A torque converter is a modified form of fluid coupling that is used to transfer rotating power from a The classic torque converter design dictates that the stator be prevented from rotating under any The load is accelerating but there still is a relatively large difference between pump and turbine speed. The running capacitor integrated in the terminal box allows for operation under many demanding ambient conditions. Ask a question online now and get answers from expert, top-rated car mechanics. In addition to the basic high overload capacity of DR. But, I shall try. torque under full load or maximum permissible engine torque under continuous load hard lock engine torque. In a vehicle with. Jump to Latest Follow. Torque converter shudder is a shudder or brief shake in the vehicle after internal clutches apply in the torque converter. However, if the load is heavy even while the vehicle is running at a medium or high speed, the torque converter may operate in the converter range. However, till the highway speed has been reached it's all clutch packs that are doing the work. Speed and Velocity Converter - Convert speed and velocity units - m/s, km/h, knots, mph and ft/s. As of Jan, 6th 2005 Dodge has a TSB out for any 3. The year 2001 entered the history of the corporation since this year a company was established under the name TCM Asia Distribution Co. Torque actuated, the phasers use the natural action of the valve springs to pump the phasers into position, lowering the amount of energy required to move the phasers very quickly. Torque converter. First indication is that it does it in drive with the brake on, low rpm vibes, second when under load in low Rpm lugging. I have no issue currently under moderate acceleration or towing or running at high way speeds. Only happens under load. Rely on the highest precision and best performance from the worldwide market leader in torque measurement. The converter will contain thrust bearings in all major load areas, if appropriate, to add durability and longevity to the unit in applications including towing, hauling, snow plows, motor homes, and other recreational vehicles. The nose gear is 3. 5 / 3600RPM Max Torque 9. Continuously variable transmission - Wikipedia Hydrak had one major flaw: the oil supply for the torque converter was sealed within the converter itself and did not circulate via a pump, and also had no oil cooler. This fastener bolt torque calculator will Estimate the unknown torque, diameter, axial force applied and coefficient of turning friction for the given conditions. I have 3300 miles now, the dealer talk to gm at 2000 miles when i took it in for the vibration. just my opinion. The vibration felt is known as "lockup shudder" and may occur due to a bad engine or transmission as well. Since the transmission is still engaged it is putting a modest load on the engine -- add to it the a/c compressor and possibly the alternator because the fan is drawing power, and yes, its quite a load on an engine that is running at necessarily low RPMs. It doe not occur while towing or under load or while manually holding the gear down or TOW / HAUL mode. It also happens around town but not when pottering on fairly level roads. R1700G-2011-Global 2020-06-06T04:16:07-05:00 R1700G R1700G Underground Mining Loader Caterpillar Current ELECTRICAL 12V Power Supply in Cab Alternator, 95-amp Auxiliary Start Receptacle Battery Disconnect Switch, Ground Level Circuit Breaker, 80-amp Corrosive Protection Spray Diagnostic Connector Electric Starting, 24-volt Engine Shutdown Switches. That takes the tires out of the equation. In effect, this is two conversion stations on the same site with the dc transmission line inside the converter building. The conditions under which the vibration occurs can be divided into four different categories: engine speed related, vehicle speed related, engine load related or random vibrations. 00 Select options; 47RE 48RE TORQUE CONVERTER NUMBER 8DXX 47RH 47RE 48RE 3 CLUTCH BILLET WITH BILLET ALUMINUM STATOR OPTION $ 1240. I recently replaced all engine mounts in my 03 sentra since they were worn out. Once the vibration is found, there are six different separate problem categories it can fall into: 1st Order Tire (Freq 11-14 hz at 60 mph) 1st Order Prop Shaft (Freq 38-44 hz at 60 mph). series motors, this motor is suited for high dynamic loads. A torque converter is a tunable device. service manual basically shows a malfunctioned torque converter can show symptoms such as car not being able to move forward, backwards, or both; engine stalls when going from neutral to drive or reverse; stall rpm too high in reverse; normal stall too low; abnormal startoff; or abnormal vibration in high load region in a low gear. To confirm TCC shudder, the vibration concern must be present in normal operation, but not present with the torque converter clutch disabled or with the torque converter clutch locked. Learn how it uses fluid to transfer power from the engine. With the vehicle at operating temperature, confirm the condition described in the Introduction. Sonnax offers cutting-edge transmission, torque converter and driveline products for the automotive aftermarket. It sounds to me like sympathetic vibration from the exhaust. Dead giveaway for a bad TC is getting shudder/vibration under a load. As far as the positioning is concerned, torque converters lie between the flexplate of the engine and the automatic transmission. Jump to navigationJump to search. I learned this in a tech bulletin found on this forum, after the fact. 5" longer to relieve higher dynamic loads and the nose-wheelwell has been extended 3" forward. Vibrations, caused by the ships engine, gear and propeller, truck suspension, road and railway surface, etc, occur in a wide range of frequencies and amplitudes. Drag Racing Torque Converter 8", 1965-90 GM TH 350/400 Small Bolt Pattern (4500-5000 Stall Speed) JavaScript seems to be disabled in your browser. They drained the trans fluid as per the TSB and it now drives like a new truck. RE: Vibration / Shudder IP: Logged Message: Bad news, After replacing the fluid, it was smooth for about 200 miles. It was found mostly behind the 3. Changed the shafts and it went away but still had very slight vibration on take off. One excitation source of shudder can be the friction characteristics of the lock up clutch of the torque converter and launch clutches in automatic transmissions. Took me along time to get to the answer which is a pretty simple inexpensive fix. Vech is going into econ mode at that speed (3 cylinders) and the feeling is the torque in between gears (at that speed) Condition is normal. Mark helpful. A torque converter noise will increase under this load. For example, torque converters lock up at highway speed for better fuel mileage. Any ideas is appreciated. In gear or when A friend with an '88 suggested it might be the vacuum disconect in the Dana 30 front end, or something in the torque converter. In-Line ICP®-Powered Charge Converters. Torque Converter Clutch Circuit Intermittent. These torque specifications…. Torque converter clutch was originally designed to lockup solid at highway speeds and felt like another gear shift (or half a gear shift). I've got a 99 Dakota 4x4. Features:This torque converter assembly is complete Torque Converter with all parts necessary to mount. ASHTONS (SHEFFIELD): Pockets & Wallets Blister Packs Ring Binders Presenters Promotional Counter Top Display Packaging Health & Safety. Torque converters are very reliable devices. Startup during winter. Under such circumstances, highly sophisticated and economical drive shafts that fit in a limited space are in great demand for use in various equipment and machines. measurement system, the unit of measure for torque is the pound-foot (lb-ft), while for work it is the foot-pound (ft-lb). [2-speed torque converter vehicle] Cornering Differences. 2, truck will have terrible vibration under light load like pulling a very slight hill. • Torque converter is smooth, vibration less & silent in operation. At the beginning stage of the conversion process, a prime mover is used to supply power to the impeller, but the rotary force of the turbine cannot be achieved. You will feel this once the converter locks because otherwise the converter absorbs a lot of driveline vibration. If I put it in second and accelerate from 0 km/h I get the vibration at 40 km/h but if I then decel to back down to 30K and accel back up to 40k I don't get the vibration. I'll start with this one. Under WARRANTY CLAIM INFORMATION, a failed part number (FPN) was changed. Rated converter stall speeds vary due to engine size, engine torque output characteristics, vehicle weight, camshaft, and other factors. LGT = Maximum Driveshaft Low Gear Torque SR = Torque Converter Stall Ratio (if applicable) T = Net Engine Torque or 95% of the Gross Engine Torque TCR = Transfer Case Ratio (if applicable). Under tension, a material usually stretches, returning to its original length if the force does not It occurs when a mechanical part is subjected to a repeated or cyclic stress, such as vibration. From whats been described, throwing the gear into neutral makes the vibration quit, tells me that the issue is a torque related vibration. Horsepower is the measure of power that produces the mechanical output. The engine, torque converter and transmission all shared the same oil. torsional vibration c. In vorteilhafter Weise wird ein derartiger. In the current work a single stage torque converter, was modelled and analysed numerically for evaluating stress distribution and deformation. Light but noticeable vibration/shutter for first 5-7 minutes of driving and felt slightly in steering wheel but evident on center console. The TCC System uses a solenoid-operated valve to couple the engine flywheel to the output shaft of the transmission through the torque converter. With my 06 Dodge Ram 3500 4x4 and 48RE transmission (Cummins diesel power), I notice when pulling and away and accelerating from a dead stop, like a stop sign, I will get the slightest vibration in the transmission. More modern iterations of the torque converter may come with a lockup clutch. Loading Sign in to see your user information. Combines maximum rimpull while in torque converter drive with the efficiency and performance of Built to withstand the forces of high torque and impact loads, double reduction final drives provide Power ratings apply at a rated speed of 2,000 rpm for Stage V model engine when tested under the. Intercooler Pump Driver Fault. 2003 Mitsubishi MONTERO 03 - Torque Convertor > POWER TRAIN : AUTOMATIC TRANSMISSION : TORQUE CONVERTER [Part 103700 ] TSB No: 0323006 Replacement: 0123010 NHTSA ID: , October 01, 2003 Summary: torque converter shudder, surge, and/or vibration (possibly intermittent) when driving 35-50 mph at steady throttle. 2013 VX with 59000 km (+/- 30k miles) trim is "limited". In such lock-up clutches, torsional rigidity of the coil spring must be reduced in order to effectively dampen torsional vibration under small load conditions. Vibrates when driving straight, goes away when turning left (100% ELIMINATED) but is much more pronounced or amplified when turning right (again only while under load, not while coasting – no vibration while coasting). The torque converter is responsible for transmitting the engine’s torque and power to the transmission. I doesn't have to contact anything to cause the vibration. Torque converters by Twin Disc allow engines to operate that the most efficient speeds regardless of load demand. The outer shell is the primary flywheel mass. Organized by manufacturer, each transmission comes with a new Power Grid Chart that helps identify the correct hard part and its position in the transmission. The ingredients of this perfect recipe can be summed up as follows: Power delivery: pliable and linear, making it extremely rider-friendly; the countershaft reduces. Subtransmission circuits and substations are located near to high-load concentrations, usually in urban areas. Full Load Speed (Torque Converter) 2100 RPM: No Load Speed (Standard Clutch) 2060 RPM: No Load Speed (Torque Converter) In Sediment Bowl Under Fuel Tank: Fuel. When the brakes are released, even if the accelerator pedal is not depressed, the vehicle slowly starts to move. This is called creep phenomenon. This Maximizer ™ Street Torque Converter has much the same performance characteristics as our standard Saturday Night Special ® series for cars, but with extra reinforcement and thicker mounting surfaces to withstand the additional load and vibration put through the drivetrain by a truck with performance modifications. He found that 3 motor mounts were busted. I did add a hea. You can look at the torque converter and try to loosen and rotate the position on the fleplate. I'm having the exhaust looked at next week. com with top-selling 1 brands. The torque converter needs to be replaced, which requires between $300-$500 for a replacement, lockup, 4L80E converter. Should a torque converter rattle Should a torque converter rattle. Torque converter definition: a hydraulic device for the smooth transmission of power in which an engine-driven | The torque converter gives the car more torque when it accelerates out of a stop. Is there something that can be adjusted to try to tune out the shudder or slipping or whatever might be going on?. If the TC was slipping, it should throw a code (P1187 if I remember correctly). The year 2001 entered the history of the corporation since this year a company was established under the name TCM Asia Distribution Co. Google discovery 3 torque convertor vibration issues, cheap fix that works is 2 tubes of Dr Tranny from ebay. 500 inch radius?. It will automatically lock up if nothing prevents it from doing so. The landing gear was extensively redesigned for the NG. Torque Converter Diagnosis. When the brakes are released, even if the accelerator pedal is not depressed, the vehicle slowly starts to move. Consequently, Park Tool offers two different wrenches. Energy conversion element which generally includes non-electrical power conversion elements are used to further increase power (usually by hydraulic or pneumatic mechanisms). It generally occurs at part throttle and light acceleration, between 15 and 50 miles per hour, just before the shift to one of the top gears where the converter reaches "lock-up. 00 Select options. Especially since my last encounter with the drive shaft falling out due to the front u-joint busting. More modern iterations of the torque converter may come with a lockup clutch. Some not included apks, please load if missing. I'll call the Torque Converter Lock-Up Clutch TCCLUC from her on. In the converter inlet, a converter safety valve is installed, which is protecting the converter against high internal pressures (opening pressure 8,0 + 2 bar). Under tension, a material usually stretches, returning to its original length if the force does not It occurs when a mechanical part is subjected to a repeated or cyclic stress, such as vibration. Excessive vibration can occur for many reasons and can also cause overheating. In rotational equilibrium, there is no net torque on the object. I'll probably switch to synthetic fluid to help protect transmission during severe off-roading. MAIN GRIPE = at cruising speed on freeway or secondary road, under light throttle, notice the tach CONSTANTLY varying ~100 RPM, like the torque converter is locking and unlocking. The axle end bolt can also get loosen. Normal cooler line pressure will range from 50 psi to 80 psi , under a load in drive. Measure the hydraulic pressure at each port under the conditions given in the standard hydraulic pressure table, and check that the measured values are within the standard value ranges. I'm at 54k miles, so not much time left. More Ford Windstar Torque Converter Service Bulletins of Other Model Years. A boost converter (step-up converter) is a DC-to-DC power converter that steps up voltage (while stepping down current) from its input (supply) to its output (load). For static analysis of torque converter components centrifugal load and fluid pressure load were considered. In high torque, high-load situations, the torque converter bears the brunt of the engines force. At highway speeds (80 km/h and up to 140 km/h) there is NO vibration either. The vibration is likely the Torque converter lockup clutch chattering under load, which is going to cause accelerated wear, and the wear pattern caused during this chattering may tend to make the clutch chatter more likely or less likely to occur in the future. Reduced working stresses for longer service life. A bad torque converter will cause whining or rattling noises will be heard. The vibration can be felt in the front seats, in the door and very slightly in the steering wheel. I'm fairly sure its coming from the transmission and at one time thought it may be the little tin dust cover on the front bottom of the transmission. 73 rear end). Measuring The Next Big Thing. Torque is a measure of the conversion of linear force to rotational force at some distance from the axis of rotation. I first noticed it after driving in the mountains and on some dirt roads. Vibration monitoring. What it turned out to be is a slight engine miss, that turned out to be a weak #6 cylinder compounded by a sticking or sluggish to disengage torque converter clutch. torsional vibration c. You can look at the torque converter and try to loosen and rotate the position on the fleplate. This refers to top and bottom parts of the Converter body and hub replacement procedure. Possibly a bad driveshaft U-Joint. An engine speed related vibration can occur in any gear, including park or neutral, at a set engine RPM. Vibration - torque converter? Jump to Latest Follow. These recommended torque values are approximate only. More modern iterations of the torque converter may come with a lockup clutch. Driveline torsional vibration in vehicles equipped with an automatic gearbox can lead to increased fuel consumption. Wheel shake when braking is almost certainly a disc issue and the screech will be calliper slider pin starting to seize, this will have caused the disc to get hot and this was probably what caused the disc to warp in the first place. Place it with the bolt holes face-up in an appropriately sized bucket or drain pan and let it sit for First, hold the torque converter horizontally and face down (bolt holes facing towards the ground) so that the fluid will not drain back out. Average failure mileage is 8,500 miles. At least I think. As it slows down, the torque converter increases the torque and therefore applies more force and thus counteracts the force applied to the wheel. Picked up truck today. The torque converter is the assembly that passes power from the engine to the transmission. service manual basically shows a malfunctioned torque converter can show symptoms such as car not being able to move forward, backwards, or both; engine stalls when going from neutral to drive or reverse; stall rpm too high in reverse; normal stall too low; abnormal startoff; or abnormal vibration in high load region in a low gear. The Pentastar V6 is an interference design; it has valve reliefs but only for clearance under normal conditions. In vorteilhafter Weise wird ein derartiger. I was thinking that maybe motor mounts or u joints on drive shaft. The torque, or turning effort, that the engine is capable of producing is low at low crankshaft. They know things are. Without being there to diagnose it myself, I'd guess torque converter shudder. 3 4l60e transmission with a split drive shaft and a G80 rear diff. in gear or when gaining speed I have a REALLY bad vibration when idling in park. Hard to pinpoint but were in the stages of just throwing parts at it and that solved it. I'm wondering if the torque converter locks up around 40km/h (265 tires) and is slipping. See Torque Force Design Equations webpage and torque chart page for recommended fastener torque and equation data. Since you can get it to exhibit the vibration while sitting still, I would start with ignition. The outer shell is the primary flywheel mass. 73756214728 pound-force feet use this converter. For example, as shown in FIG. One of the techs took a ride with me and as we were pulling out I was explaining what happens. I was thinking that maybe motor mounts or u joints on drive shaft. Same goes for axles replacements: many chinese or rebuild ones give vibrations from the start. Hand Torque Angle Wrenches. Volvos have the same issue with that mount (though Volvo often calls it a "torque mount"). 5 / 3600RPM Max Torque 9. In rotational equilibrium, there is no net torque on the object. I’m getting a slight vibration under load coming in at 1500rpm and disappearing at 1800ish rpm. Torque Converter Rebuild Near Me. Sonnax offers cutting-edge transmission, torque converter and driveline products for the automotive aftermarket. A single gun welder is a good option since the process is fully automated - there's barely a chance of misplacement during welding. Howie Kurtz, host of Media Buzz on the Fox News Channel and the Media BUZZmeter. Torque converter clutches will form glaze that will cause the. torque converter family for starting gas turbines. HBM develops, produces and offers all kinds of products for Torque Measurement, including Torque Transducer, Torque Meters and Torque Sensors. Check first for an engine misfire. Vannevar Bush used Nieman's torque amplifier as part of his differential analyzer project at M. 80 lb/ft @ 8000 rpm. [2-speed torque converter vehicle] Cornering Differences. Does it stop shuddering after a shift? Accelerate through the 50 mph and see if the shudder going away corresponds to a change in rpm. It is a 1/2" drive "click" type, adjustable wrench that accurately measures up to 150 ft. The noise I hear I hear it all of the time, from 5 mph and up, and it will make it in every gear, as well as in/ out of lockup. When applied to a bolt, this force becomes tension in the bolt threads, which in turn applies a clamping force (or load) between the two materials you are bolting together. 6is , I am also experiencing the vibration (over 4000 rpm and under load) my question is : was the vibration on your car under load ?? also in While reading up on the job, I've found this post and others about the torque converter and vibration which has me wondering if mine has a problem as well. When under load, at max vibration, there is another higher frequency “rattle” that comes it that sounds like it’s coming from under the dash somewhere, it seems secondary. Vibration in flexplate/TC causing major vibrations at high RPM in neutral and in gear. Your wheels, tires, axles, driveshaft, transmission, clutch or torque converter and engine components are all rotating at a high rate of speed, and any one or more of these components can create a vibration if they are worn or out of spec. 154 1203 12 Beat The Creep Torque Converter Fluid Flow. Torque Converter Diagnosis. Adaption under load (cyl 4-6). If TCC shudder is present, a vibration peak will appear at approximately 43Hz +/-3Hz. $3,000 later…I still have the vibration like originally had in the seat. But once you go from park to drive, the noises will get louder and more frequent. Joined Jun 21, 2008. For static analysis of torque converter components centrifugal load and fluid pressure load were considered. They know things are. An open or shorted condition detected in the torque converter part throttle unlock solenoid Cylinder 4-INJECTOR circuit load drop. Under light acceleration your 2012-2014 Camry may shudder as the torque converter locks up. During right turns, more prevalent around 40-55 mph if it is under load or gas pedal is being held or increased, left front will chatter. I still have a vibration at 20mph when driving with light throttle. The balancer has been changed. torque converter family for starting gas turbines. Jump to Latest Follow. 1 of 2 Go to page. The electromagnetic torque converter, which is an electric system comprised of a set of double rotors and a stator, works as a high-efficiency transmission in the driving conditions of low gear ratio including a vehicle moving-off and as a starting device for an internal combustion engine. the fluctuations or ripples) induced by internal-combustion engines is a significant source of noise, vibration and harshness issues, which cause problems in autom. We offer several examples of calculating the torque converters The reason for the torque converter repair is shudder and vibration during acceleration and shifts i. This is a balanced assembly and spins anytime the engine is running. He said it was the torque converter, but surprisingly said it didn't need repair. I have no issue currently under moderate acceleration or towing or running at high way speeds. As far as I know, the gearbox fitted to the 335D is a ZF GA6HP26X. Our load cell offering includes competitively priced general purpose and fatigue rated load cells, which come in a variety of mechanical configurations such as single or dual bridge, low profile, canister, rod-end, and s-beam load cells — all of which provide excellent accuracy at an affordable price. If vibration occurs after installation, mark converter to flex plate and rotate the converter one bolt hole at a time. Leading provider of high performance automatic transmissions, torque converters and drivetrain components for race, street/strip, hot rod, street rod and towing. He replaced and at the same time, replaced the timing belt and water pump. A torque converter hydraulically connects the engine to an automatic transmission and will multiply the engine torque under certain conditions. after 2mi he said "it is the torque converter". However, if the load is heavy even while the vehicle is running at a medium or high speed, the torque converter may operate in the converter range. When we refer to a locking torque converter it is the TCC that is performing that function. Typically it will happen on the motorway while gaining speed back to 70mph if you have slowed to 60ish while staying in 7th gear. Dealers are suggesting transmission fluid change, torque converter replacement and other remedies. The turbine speed is “caught” and the slip power of oncoming clutch is reduced without the output torque vibration. Sell Under Amazon Accelerator. At least I think. The transmission pan should be cleaned out, the TCC solenoid (3C3Z-7J136-BA) and external fluid filter replaced, and the cooler flushed and flow checked. What are synonyms for torque?. 500 inch radius?. The vehicle speed to lock is unique for each gear. SO today I hooked up the trailer to haul a car and before I left the house I noticed when the truck was in gear there was a rattle coming from the transmission and it sounds like its coming from the torque converter. In addition to the basic high overload capacity of DR. Have about 50 k on rebuilt tranny. Vibration still there after they flushed the system! Going to drive it 200 more miles and if vibration still not gone I will take it back and would like the replacement updated torque converter put in. Show declension of torque converter. I actually just did a converter swap here on my back in the parking lot with a fully wet transmission (no drain plug arrg) 260 lbs. It starts when gently accelerating beyond 50mph and fades away at around 80mph. Particularly around 1000-1500 RPM, primarily around 4th gear and then to 7th and 8th. Discover all the products from J. Occasionally one fails internally. The Pentastar V6 is an interference design; it has valve reliefs but only for clearance under normal conditions. , industrial cranes, artillery, etc. 1 synonym for torque: torsion. Continuously variable transmission - Wikipedia Hydrak had one major flaw: the oil supply for the torque converter was sealed within the converter itself and did not circulate via a pump, and also had no oil cooler. Torque converter structures closer to the dual mass structure are therefore under development. Torque Converter Clutch Circuit Intermittent. Torque Converter on WN Network delivers the latest Videos and Editable pages for News & Events, including Entertainment, Music, Sports, Science and more, Sign up The torque converter normally takes the place of a mechanical clutch in a vehicle with an automatic transmission, allowing the load. The answer to your last question is that a locking torque converter which does not disengage applies maximum load to the engine, stopping it!. Dust Filters. Torque repeatability uncertainty under the same reference command is typically as low as 1% of nominal torque across the drive’s speed range. It starts when gently accelerating beyond 50mph and fades away at around 80mph. (Page 1 of 2). What a Pandora's box this has lead to. automatic-transmission vibration torque-converter. In the real world, you often see more than one force acting on an object to cause torque. Comet Torque Converter Diagram. Although torque converters are ideal launch devices for transmissions, they are inefficient in steady-state operations. No change in vibration. Letting all of the way off the throttle or adding a lot of throttle will unlock the torque converter. Enables additional item under POI, Along Route; this item allows you to pick category of POI and then it will display POIs of that type along your route, showing their locations on a split screen map when you. Verify concern. Possibly a bad driveshaft U-Joint. Should a torque converter rattle. MAIN GRIPE = at cruising speed on freeway or secondary road, under light throttle, notice the tach CONSTANTLY varying ~100 RPM, like the torque converter is locking and unlocking. Цепь управления регулятором холостого хода, перегрузка. So as load changes the TC could unlock at anytime between 40-75 (as speed increases load will need to increase). 8l engine, may exhibit a drone (audible noise) and a tactile vibration in the steering wheel (higher frequency buzz) at 1350-1400 rpm (40-45 mph) under a light load with the torque converter locked in 3rd or o/d. Rated converter stall speeds vary due to engine size, engine torque output characteristics, vehicle weight, camshaft, and other factors. Torque converter Oil pump, Manual valve in the valve Driving device abnormal. The vibration should work when the ball hit the crossbar/Post. The earlier the torque converter can be disengaged and bypassed by a lock-up clutch, the better the efficiency of the engine. Step-by-step solutions to millions of textbook and homework questions!. , if the torque converter is locked up it is effectively out of the picture -- so no vibration would mean the TC was the source of the. Someone else said that the torque converter is bad?!?. Turbine dampers are used in torque converters to dampen engine vibrations. Derating may be needed under low input voltages. To check for this condition, drop the inspection plate on the bellhousing and crank the engine while watching for missing or loose bolts. But it does not vibrate. The nose gear is 3. The TCC is. This centers the torque converter. It runs smoothly when the car is moving, but if I idle on D or R, I can hear the rough vibrations. direction that the liquid leave turbo change under the action of idler. Under this condition, the transmission is directly driven by the engine. See Torque Force Design Equations webpage and torque chart page for recommended fastener torque and equation data. a torque converter. I connected it to the computer and tried playing FIFA 14. Torque converter simulation greatly improved. Contact the manufacturer directly for a quote. In effect, this is two conversion stations on the same site with the dc transmission line inside the converter building. What Does the Motor Speed Torque Curve Tell You? Why Independent Cart Conveying is One Smart Move. The snub mount can definitely cause vibrations under load. The following 21 files are in this category, out of 21 total. Here are the symptoms as best as I can tell; 1. Should a torque converter rattle Should a torque converter rattle. Sizing Guidelines. Shop online at everyday low prices!. The vibration is likely the Torque converter lockup clutch chattering under load, which is going to cause accelerated wear, and the wear pattern caused during this chattering may tend to make the clutch chatter more likely or less likely to occur in the future. Someone else said that the torque converter is bad?!?. On automatic transmissions which have a lock-up torque converter, a clutch locks the torque convert. This centers the torque converter. LEDWH-01 from OSEPP at Allied Electronics & Automation. Torque calculation tools. This increases the service life of all drive components. It turned out to he the leaf springs when under big torque would allow the pinion angle to rotate up enough to throw it off and cause a vibration. Comparison of Torque converter & Gear box Both are torque multiplying devices. Sounds like the lock up clutch is slipping. When worn out, and under a load, the braces are hitting metal to metal, transferring the engine vibration into the frame. Driveline torsional vibration in vehicles equipped with an automatic gearbox can lead to increased fuel consumption. Horsepower: 66 HP;. Significant Vibration in Steering Wheel Other tech issues. It doe not occur while towing or under load or while manually holding the gear down or TOW / HAUL mode. As soon as I was out of the throttle it would return to normal the vibration would go away. Long endurance. Abstract: In the torque converter, a damper with a piecewise-linear spring is used to reduce the forced vibration, and the subharmonic vibration occurs when the spring restoring torque characteristics approach the switching point. 0L small-block V-8 applications.