Clogged transmission oil filter. Take a look at the image. Fluid leaks in the vicinity of the torque converter are usually due to a bad front transmission input shaft seal. Another popular symptom is overheating. E40D transmissions can have hard shifts if voltage falls below 11 volts or spikes. Replace this valve assembly completely to save your torque converter from an early death (Figure 6). A bad converter can prevent a vehicle from generating sufficient power. The torque converter market is dominated by players such as Schaeffler (Germany), ZF (Germany), Aisin (Japan), Valeo (France), and BorgWarner (US). It can take as little as a few good slips for the clutch material to burn off and its done for good. TOM: So, normally you would fix this by replacing the torque converter, which requires taking apart the transmission. Pro Torque grinds this off and modifies the face of the turbine and applies a ceramic friction material to the face of the pressure plate. One of the most important things to remember is that the more you drive a damaged transmission, the more you will be damaging it and other parts of the vehicle. Reasons for this part's failure: Piston stuck, or seals or springs damaged or missing. I'm just glad it didn't do any damage to the engine or transmission. The 700R4 uses a lockup converter. The non-working one was brand new and was showing a P0742 code - TCC stuck off. When this component starts to malfunction, it can quickly affect your driving experience and your vehicle’s performance, so it’s important to understand the signs so you can quickly spring into. They have since told me that I need to get the torque converter rebuilt as it is slipping. After they put in the new torque converter 2 weeks ago, I was expecting things would be just fine. Or could be the solenoid failing. These welds can fail (split or break) due to excess pressure or by a poor welding job. I was hoping the additive would be just enough to affect the lockup clutches in the torque conv. Some converter parts that might go bad are the torque converter seal, TCC solenoid, converter clutch and the needle bearings. you will lose more fluid at cooler line because transmission under pressure the oil pump pumping it through the radiator you will lose all your fluid quickly if leak coming from cooler lines going into radiator. The reason for this type of torque converter clutch problems is that the transmission fluid normally flows from the converter and directly through the transmission cooler. If you are instal ing a new converter and transmission, skip to STEP 3. Internal hard part components are seized. Essentially, it converts the engine’s power into a different usable power through the transmission, so it can shift gears automatically without causing damage to the powertrain and engine failure. Leaving a pilot bearing in place can prevent the piloting "knob" of the torque converter from seating correctly. In automatic mode, a dual-clutch transmission drives a lot like a traditional torque converter automatic. Instead of general conclusions about “transmission trouble” you might be able to narrow it down. This is telling us that there is a problem with the torque converter’s lock-up clutch. Do not run the transmission dry of oil you will damage the oil pump. Transmission torque converter shuttering, 94 suburban Shutters in 3rd n 4th,? Problem started a four months ago. Torque converters can fail for many reasons, including dirty fluid, overheating and problems with stall speed, which is the RPM at which your torque converter shifts power from the engine to the automatic transmission. The higher you raise it, the easier it will be to work under. I'm grasping at straws here, but can a converter going bad hurt the rear main bearing?. Dodge Rebuilt 68RFE Signature Series 550 Transmission. TRANSMISSION PAN REMOVAL 3. Replace this valve assembly completely to save your torque converter from an early death (Figure 6). How to Prevent Transmission Problems. Torque Converter Shudder occurs when the clutch inside the converter on an automatic transmission is being applied and the transition from slipping to locked up does not occur smoothly. Does free rotating stator spindle, and the fact it is wobbling, indicate the torque converter is damaged? It is welded together, so I can't look inside. Contains no solvents. It may not look like much, but there are some very interesting things going on inside. The bad thing is that you could damage your motor by overrevving it. remainder of the transmission fluid out. We strongly recommend a high capacity transmission cooler to protect your converter and transmission from damage". A dual-clutch transmission eliminates the torque converter as used in conventional epicyclic-geared automatic transmissions. In short, that number you love to read about with sporty new cars, the 0-60 mph - well, thank your transmission for speeding up the process. Shifting makes the sound change. Your battery and alternator can effect the operation of your transmission Electronic Transmissions need the proper voltage to operate correctly. P0741 Torque convertor clutch circuit failure,it is located in the transmission valvle body, it is attatch to the valve body you can remove it seperately as long as your going to own the Ford focus you might as well get use to replacing these all the time,very common transmission issue with todays car. Transmission problems can result from leakage or from damage to the torque converter, solenoid or internal clutch. The clutch can be defective and cause the transmission to. bad torque converter? Hey everybody, So i have a 2002 4runner 4×4 ltd, 165,xxx miles, A340f transmission, mostly stock, and im starting to have trouble with my transmission and i believe my torque converter is to blame. Let's take a look at some of the bad habits that can destroy your transmission, presented in a tongue- in- cheek manner to help emphasize their significance. transmission failure. Input shaft grinds upon entry into torque converter. I have also noticed, the best way I can describe it, a whining/rubbing noise. 1) It turns out the torque converter shown here was bad and the transmission worked O. (for a while anyway) after it was replaced. If you have a transmission slipping or your transmission fluid has black material within it, it can be a bad torque converter. It may not look like much, but there are some very interesting things going on inside. Depending on engine speed and load,. -Torque converter clutch. So I was wondering if the failing transmission has anything to do with it. Colour of the oil was normal (8000 miles driven). Contaminated transmission fluid can cause significant damage to your transmission, and this may require a costlier repair, up to and including a complete transmission rebuild/transmission overhaul. Below you will find 4 signs that your automatic transmission is going bad and needs to be repaired or replaced. The torque converter helps regulate the amount of fluid that flows through an automatic transmission and helps the engine function at a full stop. The difference is that the torque converter can't be cleaned or flushed out and must be included in a transmission rebuild. Yes, BlueDevil Transmission Sealer will work to seal any leaks coming from the torque converter seal. The automatic transmission fluid (ATF) is the one that passes from the torque converter to the transmission to transfer the torque power. Transmission torque converter replacement could also be an option, depending on what exact parts are malfunctioning. Over the past couple weeks I have noticed what I thought was an intermittent misfire. Can a bad torque converter cause low MPG? I don't want to rebuild my transmission, if something else is causing me to have very poor MPG. All automatic transmissions use a torque converter to couple the engine and transmission. Transmission Fluid Guide – NO. It will start in first, upshift to second, and stay there. The correct amount to use is 1 ounce of BlueDevil per every 1 quart of fluid capacity. Torque converters enhance the operating range and driveshaft motion of the engine. Consulted with a Honda dealer on this matter. Below is a chart that shows how to measure for proper depth clearances. The torque converter housing is mechanically attached to the engine's crankshaft causing the pump to operate whenever the engine is running. This can result in worn bearings on the stator, or damaged fins on one of the turbines. This can cause the flexplate to fail and even break the transmission case, as was the likely situation here. 1-2 will give first gear only, 3 will give third gear. A torque converter problem could also cause the transmission to shift funny. GM and Chrysler have bulletins pertaining to this problem on some models of their vehicles. A torque converter can fail in many ways. Otherwise, the transmission had no burnt clutches and with the exception of the worn compounder drum, this was still a very good transmission. The oil pump has to be functioning to get fluid under pressure to the front seal and to the cooler lines, and the torque converter must be spinning to throw oil from any cracks that may be. Torque Converter Clutch. CVTs, however, offer unlimited gear ratios. The pressure loss will cause the converter lining to be only partially engaged. Preventing Transmission Leaks. Consumers face escalating repairs that can include flushing the transmission of metal shavings caused by the defective transmission operation, and which eventually necessitate the replacement of components such as the torque converter, valve body, or the entire transmission. E40D transmissions can have hard shifts if voltage falls below 11 volts or spikes. I'm grasping at straws here, but can a converter going bad hurt the rear main bearing?. The ratios for the gear stages are obtained by 3 planetary gear sets. Wrong application for vehicle. Can the transmission be separated without detaching the flywheel or torque converter? I've never done this type of work before and never with a stuck engine. Rattling noise noticed immediately after start-up during idle. 1-2 will give first gear only, 3 will give third gear. Note - Burnt ATV is not longer doing its job and driving it is doing more damage, A malfunctioning torque converter, failing solenoids and slipping clutches can all cause burnt transmission fluid. Technical Service Bulletin – Transmission Fluid Guide. One of the causes of aworn out thrust bearing is a worn out or faulty torque converter. Torque News is an automotive news provider by Hareyan. Torque converter shudder in 4th while lockup is engaged; problem goes away when the brake pedal is pressed slightly to unlock converter: Need to verify line pressure, and provided no valves in the TCC (Torque Converter Clutch) hydraulic circuit are worn, replace the torque converter. • A transmission fluid flush can’t fix torque converter wear • A transmission fluid flush can’t fix worn bushings • A transmission fluid flush can’t fix worn bearings • A transmission fluid flush can’t fix worn gears. bad torque converter? Hey everybody, So i have a 2002 4runner 4×4 ltd, 165,xxx miles, A340f transmission, mostly stock, and im starting to have trouble with my transmission and i believe my torque converter is to blame. Which transmission fluid additives help shifting issues? Lots of companies make transmission fix additives. I've driven it about 700 miles so far and it is very smooth, no shaking or shuddering so far. Some shops consider it a "hard part" and don't include it in the quoted price for the rebuild and will be an additional cost to the customer. That thing is cracks all the way around. P0848 OBD-II Trouble Code: Transmission Fluid Pressure Sensor/Switch B Circuit High to shift properly and for the torque converter to engage and disengage like it should. Stepping up to a higher stall converter can impose higher loads and create more heat, so proper cooling is essential. The torque converter clutch is also known as a lock up converter. No definition of a transmission actually mentions an ability to split torque to two different axles while being located directly between them. Moving it around in the transmission and torque converter is friction, a necessary evil, not the point of the game. When the engine is idling, such as at a stop light, the amount of torque going through the torque converter is small, but still enough to require some pressure on the brake pedal to stop the car from creeping. A rather simple test can determine whether the torque converter is failing. A plastic playing card makes a great clutch pack piston seal installer. If the vibration stops, with the torque converter disconnected, the problem is found. There is a shaft on the front of the transmission that slides either into the clutch plate or the torque converter that has splines on it. Otherwise, more serious problems will soon follow. In some situations, a transmission fluid replacement or transmission flush can free up a shift solenoid that has become stuck, helping you avoid higher repair costs. If you needed low gear, then you placed the selector in Low, but otherwise you put it in Drive and left it. This usually results in damage to the pump gears. Do not run the transmission dry of oil you will damage the oil pump. Reason I'm asking is because my truck seems to buck and shake sometimes when I drive, I've had the infamous coolant leakage problem and its known to damage trannys, and from what I know (not much) the torque converter is. Thoroughly inspect your flexplate and drive shaft before installing transmission. Torque converter damage. The truck is professionally built and has a. A blocked converter can reach over 1,200 degrees Fahrenheit internally, and eventually the torque converter case can begin to glow red hot. You can diagnose problems with your torque converters on many older transmissions by conducting a stall-speed test. Metric torque converter bolts are also required to bolt the converter to the flexplate, GM (PN 1261968). A bad front oil seal, speedometer gear seal, cooler lines, extension housing seal or torque converter will generally leak most during vehicle operation. As a result, people will end up paying thousands of dollars just to replace their transmission or have it rebuilt. The good news is that some of these signs actually indicate a bad torque converter, and torque converter replacement is much cheaper. This will burn out the lining, causing loss of power and overheating. Will a bad torque converter cause transmission to whine and slip? I have a 2001 chrysler sebring, engine light came on and transmission is whining loudly and gear slippage Follow. Would only last for a few minutes then disappear. Manual/Standard Transmission Can’t Depress Clutch Pedal or Shift Gears. A bad torque converter might seem like transmission failure. 1) It turns out the torque converter shown here was bad and the transmission worked O. The P0741 fault code is a transmission fault code for “Torque Converter Clutch Performance or Stuck Open”. I am hoping my issue is a bad tire, but starting to get concerned that it may be a torque converter, but since it is very inconsistent and typically at high speeds (65mph+), not sure if this falls under the TC symptoms. If your leaking fluid around the torque converter hub and the seal is new, it's either that the converter hub is under size from wear or the front pump bushing in worn causing premature wear of the seal. Many transmission systems are controlled electronically, and the culprit may be a bad transmission control module. ”Pam Jacoby. You really should flush the old oil out if its that bad! you can do this by removing the oil cooler pipe on the front right hand side of the transmission and put it in a bucket run machine till oil comes clean then top transmission back up. Going from reverse to drive while moving slowly will not DAMAGE an automatic transmission, but it is a bad habit. The shuddering and hesitation seem to be related to internal issues within the transmission and/or torque converter causing friction surfaces, hydraulic systems, and gears to not function properly. Torque converter shudder repair costs ranged from $125 to $250 for the US in 2019. All About Transmission Torque Converter: Problems, Sensor, Seal January 27, 2012 The main function of a transmission torque converter is to transfer any rotating power from the engine or electric motor to a rotating driving load. The Signs And Causes Of Torque Converter Problems A torque converter is a component used in a vehicle with an automatic transmission. dumb problem: 302/c4 torque converter issues Here is my problem, I am currently building a 302 to put into my truck. back onto the engine WILL damage the pump / housing, torque-converter, shafts or more. Like any moving parts, the transmission's parts eventually will wear out. the engine incrementally; do not run the engine. If the engine is running normally, then there could be an issue with the transmission. GM and Chrysler have bulletins pertaining to this problem on some models of their vehicles. Torque converter dissipate waste energy as heat to the ATF. These tests are important as a slight engine misfire very often causes the same sensation and is may be mistaken for a torque converter shudder. As a result, people will end up paying thousands of dollars just to replace their transmission or have it rebuilt. 76 transmission. These are the top 6 things that can damage your transmission and lead to costly repairs. If you notice a reddish puddle under your car after it's been sitting for a while, you'll want to get your transmission inspected, as a low transmission fluid level can cause other serious problems. It depends on the type of fasteners used. (3) Torque Converter The Torque Converter, like the transmission cooler that will be full of debris from the old transmission (which can be cleaned), the torque converter will also contain debris. In this article we are going to talk about the part of the automatic transmission called the torque converter. to inspect the torque converter, remove the transmission. #4 - Torque Converter Leakage. A bad torque converter interferes with the transfer of power from the engine to the transmission of a vehicle. the torque converter should be about 3/4" or more inside the lip of the bell housing to mount it up. A direct-control strategy is used to provide real-time pressure management of the transmission's clutches. For those that like a flush, they will tell you that a flush is necessary to get the fluids out of the torque converter. The main purpose of the torque converter is to multiply effective engine power to the transmission at low speeds, and to act as a fluid coupling at higher speeds in delivering torsional force from the engine to the transmission main body. This is one of the most common and easily fixed problems that can cause transmission slipping. Again, because a bad torque converter means that your flow of transmission fluid isn't what it's supposed to be, you can also have issues will transmission surges or lags while you drive. The function is no different than a clutch in a car outfitted with a manual transmission; it allows the engine to run while the car is at a dead stop. The first sign that a torque converter has gone kaput, is the stalling of the vehicle while in forward or reverse gear, simply slowing it down to a complete stop. Flexplate cracking on various, engine applications is common. The transmission itself, except for the valve body and speed sensor, is virtually the same as a full hydraulically controlled. Another popular symptom is overheating. Ford C4 and C6 Transmission Trouble Shooting Guide It’s good to have a source to guide you when you’re struggling with troublesome transmission function. Replied by barneyb on topic Torque Converter bad - Can this cause other damage I would venture to say, although I have no proof, that clutch material from the torque convertor is the most common cause of automatic transmission failure. A bad torque converter interferes with the transfer of power from the engine to the transmission of a vehicle. I'm grasping at straws here, but can a converter going bad hurt the rear main bearing?. For any vehicle, a bad torque converter can result in no gears. In the SunCoast Category 4 5R110 transmission rebuild kit we upgrade the intermediate shaft to a precision machined billet steel shaft. It can take as little as a few good slips for the clutch material to burn off and its done for good. 30 over 350 TBI injected, teflon coated flat top pistons, Vortec cylinder heads, roller rockers, Crane Cam, MSD Ignition, Holley TBI, etc. The cracking on these flexplates can be seen either around the crankshaft or torque convert bolt hole patterns. A bad torque converter might seem like transmission failure. However, to prevent engine torque from overcoming the shear strength of the transmission fluid in the torque converter, or to prevent excessive torque from damaging transmission or other drivetrain components, the system is also designed to allow some slippage to occur under certain conditions, such as severe acceleration. Transmission Modifications. Going from reverse to drive while moving slowly will not DAMAGE an automatic transmission, but it is a bad habit. it will not. You just lose the lock up torque converter function which will reduce fuel mileage. "; #2 - Sneaks out at night and holds up convenience stores for all the ATF they have on hand; The Number 1 reason your torque converter is bad - Your torque converter has appeared twice on "America's Most Wanted". 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. No a bad convrter can not damage your transmission however it will make your vehicale run rough bad torque converter, bad transmission shift solenoid or bad transmission in general, broken. Hi, I recently had revs jumping up and down slightly whilst driving more so on an incline, had the oil and filter and sump changed, still did the same, was told buy a transmission place it was the torque converter, so spoke to a local garage who said they could do the job, had the torque converter sent away to be reconditioned, refit back and. Torque converter replacement should always be considered if your current transmission's torque converter has sustained heavy damage. • A transmission fluid flush can’t fix torque converter wear • A transmission fluid flush can’t fix worn bushings • A transmission fluid flush can’t fix worn bearings • A transmission fluid flush can’t fix worn gears. A second opinion from an auto shop (although we were not able to recreate the grinding noise), said that if Acura said it was a bad torque converter, then it's not just the torque converter that needs to be replaced, but the entire transmission as there would be bits of metal and debris floating around the transmission,. While I heard all the arguments about removing just the transmission and leaving the torque converter in the car, it is the exact wrong way to do it. FAILED NEEDLE ROLLER BEARINGS (AUTOMATIC TRANSMISSION SYSTEMS ONLY) Needle bearings are small, lightweight roller bearings that help prevent gears in the automatic transmission's torque converter from grinding. Contaminated Transmission Fluid A torque converter is filled with automatic transmission fluid (ATF). We also installed the torque converter on the transmission first and then lowered the engine and bolted the torque converter to the engine. fluid and filter change. Let’s take a look at some of the bad habits that can destroy your transmission, presented in a tongue- in- cheek manner to help emphasize their significance. Ultimately, it's gonna be your call. Torque isn't a huge issue with the 4L60E, it was meant for a light-truck. Torque Converter. Other factors, such as where the work is done (whether at a local auto repair shop, car dealership or you do-it-yourself) also factors heavily into the cost of repair. When this happens, the torque converter can get jammed or overheat too much to the point of burning. In this case, the flexplate would be mounted to the crankshaft of the engine in order to transfer the output (energy) from the engine to the torque converter. The weight of the torque converter can deform the seal lip causing it to leak. Transfer power of the transmission can also be affected through issues such as overheating, shifting problems, slipping between the gears as well as higher stall speeds. Metric torque converter bolts are also required to bolt the converter to the flexplate, GM (PN 1261968). The engine runs fine, and the transmission seems to shift into gear. If the transmission fluid gets too hot, it can damage the seals and bearings in the transmission, so it can certainly play into the lifespan of the unit. I've driven it about 700 miles so far and it is very smooth, no shaking or shuddering so far. Part# 306218-3 / 306278-3B. In a vehicle with an automatic transmission, the torque converter connects the power source to the load. Clogged transmission oil filter. Can the transmission be separated without detaching the flywheel or torque converter? I've never done this type of work before and never with a stuck engine. It depends on the type of fasteners used. A rather simple test can determine whether the torque converter is failing. American Honda investigated the judder and found that the torque converter was not causing the judder and the transmission is not damaged by this judder. After reading, you will know how a torque converter works, symptoms of a bad torque converter, and its average replacement cost. This is telling us that there is a problem with the torque converter’s lock-up clutch. Helpful Hints: 3. Transmission Modifications. ( 2 ) Make sure the torque-converter is correctly seated on ALL 3 of the transmission input shafts BEFORE you try to mount the trans. Here's how: 1. According to Cars Direct, these symptoms may occur separately or simultaneously. Your Car Shudders. Which transmission fluid additives help shifting issues? Lots of companies make transmission fix additives. Can a bad torque converter cause low MPG? I don't want to rebuild my transmission, if something else is causing me to have very poor MPG. This is showing the testing of a correctly working torque converter versus a non-working unit. Replace as required (located inside the transaxle, recommended that a transmission shop do the repair, but a full rebuild of the transaxle is NOT required). This slipping could be caused by many things, including burnt clutch discs, bad solenoids, inefficient fluid, and worn gears. The weight of the torque converter can deform the seal lip causing it to leak. Most if not all torque converters have a lock up ability where the engine shaft and drive shaft can be locked together by way of a friction disc on the outside rim of the torque converter. Furthermore, even if the torque converter has started failing, your vehicle will still continue to work for quite some time before the converter fails completely. Torque Converter Problems Torque issues happen very often. I drained the torque converter and transmission oils thru a fine mesh filter but couldn't find any particles. This is most easily noticed leaking transmission fluid. My transmission guy said I have brass shavings in my fluid and the noise is originating from the torque converter area. Probable Cause: 1. In this article we are going to talk about the part of the automatic transmission called the torque converter. A torque converter can fail in many ways. These are the top 6 things that can damage your transmission and lead to costly repairs. I cut the torque converter open. If the fluid is contaminated, it can do damage the parts inside. Please check for proper clearances. Wrong gear selection with EXCESSIVE throttle will do so damage but floating in the higher gears at a low speed with little throttle ,a. Bad Torque Converter. torque converter characteristic (loose/stiff, stall torque ratio and peak efficiency, etc. I can shack the entire torque converter and hear it. The 'clutch pack' that control first gear in your transmission are the ones that are at fault. Now sometimes the two tanks can contaminate each other, which is a real mess, and would require complete flushing of the transmission, including torque converter, so that could add some labor---but still, unless there's more to be done on the car, their estimate sounds like you're actually pay 1/2 of a bill that was inflated to 2X. Automatic transmission fluid (ATF) is the fluid used in vehicles with self-shifting or automatic transmissions. You can be methodical and cover all the bases during a rebuild and still things can go wrong. When being rebuilt, the torque converter is cut open, washed and machined, the bad parts are replaced and it is bonded back together, welded, balanced, and tested for leaks. Torque converter shudder repair costs ranged from $125 to $250 for the US in 2019. Shift suddenly become very hard. The seals did not look as though they were leaking. Perhaps it wasn't done correctly, and they can clue in MB and the other dealer. You drive normally and do the occasional launch at the track, than it will hold. A torque converter is a coupling that relies on a fluid hydrodynamic to allow the engine to spin independently of the transmission. Clogged transmission oil filter. To check the transmission torque converter complete the following steps: (1): Set the parking brake and start the engine. The engine’s crankshaft has a flex plate bolted to it. Torque converter. back onto the engine WILL damage the pump / housing, torque-converter, shafts or more. Chrysler, Plymouth, and Dodge Four-Speed Automatic Transmission Torque Converter Disabling. ) becomes less relevant for • vehicle performance and • fuel economy. The automatic transmission is a very important module of your vehicle. Debris on the dipstick is an indication the transmission is on its way to retirement. They replaced the 2 batteries in it 2 weeks ago, and the next day the passanger side battery blew the. Fluid leaks in the vicinity of the torque converter are usually due to a bad front transmission input shaft seal. Welcome to Gearstar—Your #1 source for high-performance transmission and torque converters! We sell automatic transmissions, custom-built and optimized with precision by master technicians, who are dedicated to engineering and building the finest. I discourage anyone with 90's (or R129) 722. Does your transmission guy have a VAG-Com to measure the temp and perform a proper fluid level check? My sisters Jetta did the same thing after a fluid change at the dealer. Though it can be tempting to try to repair a bad shift solenoid at home, it’s recommended that you use an experienced shop to diagnose and repair the issue. The transmission experts at AAMCO Utah can perform all transmissions services from maintenance to major repairs. If you notice a reddish puddle under your car after it's been sitting for a while, you'll want to get your transmission inspected, as a low transmission fluid level can cause other serious problems. If the converter's seals have gone bad, the fluid used to transmit power from the engine to the transmission could be leaking. Air leaks on intake side of pump (11). Yes, BlueDevil Transmission Sealer will work to seal any leaks coming from the torque converter seal. Symptoms like late and eratic shifts can be caused by a bad battery, cables or poor ground. Re: Torque Converter Chattering/Shuddering Fixed! Thats the thing, I wasn't wanting to make a difference in the way the tranny behaves. The transmission itself, except for the valve body and speed sensor, is virtually the same as a full hydraulically controlled. Shudder and slipping in the gears caused by bad fluid and torque converter. Listen specifically for whirring, which means bad bearings, or a clicking sound, which indicates a broken turbine fin. An out of adjustment brake light switch can also cause the torque converter to no lock up sometimes. Again, because a bad torque converter means that your flow of transmission fluid isn’t what it’s supposed to be, you can also have issues will transmission surges or lags while you drive. A pan full of metal means the hard parts are self destructing. Hydrodynamic transmissions are used in many passenger rail vehicles, those that are not. ATI Performance Products shows you how to determine the stall speed needed and torque converter selection for your Chevy. I temporarly mounted the 302 to the c4 so i could mock up the engine mounts (302 has no heads on it right now). Correction for this problem: Check these parts for damage. so you can easily tell if the TC is seated fully or not. Slipping Transmission at low speed- The torque converter “stall speed” is the speed that the engine needs to be turning before the torque converter will begin engaging the transmission. Use a small flashlight to illuminate inside the bottom of the torque converter to examine the turbine shaft seal. Although the torque converter clutch is not part of the engine, it can make the car feel like the engine has a problem. The weight of the torque converter can deform the seal lip and cause it to leak. My ex- had to replace the transmission because the bolts were not put in correctly when someone else had changed. Forum discussion: I have a friend who has a 2003 Dodge Ram 2500 with a 5. Transmission Fluid Guide – NO. The warning signs of a bad torque converter include transmission slippage and surging, partial loss of vehicular power, problems when attempting to switch gears and abnormal engine noise. Remember that with an AOD, you’re marrying not only the converter and pump, but also the separate, inner overdrive shaft. Here are some of the solutions that could be made when you are having problems with your automatic transmission. Bad habits are hard to break but just being aware of some of the ways you can avoid destroying your transmission can help immensely down the road. Turned out to be flex plate. Front of torque converter: Lift transmission up horizontally and place the torque converter onto it, making sure it's seated all the way down. The 6L80 features a generously deep first gear for an automatic, making for favorably powerful starts from a standing stop. The photo below shows a cracked rotor in a TH700R4 transmission from a mis-installed torque converter. This can cause the flexplate to fail and even break the transmission case, as was the likely situation here. Clean the allen recesses in the drain plugs out and then remove them to drain the fluid out. To perform the test. Dodge Ram 68RFE Signature Series 850 Transmission. The result is serious pump damage, in a very short period of time (within minutes or hours). All About Transmission Torque Converter: Problems, Sensor, Seal January 27, 2012 The main function of a transmission torque converter is to transfer any rotating power from the engine or electric motor to a rotating driving load. Torque converter dissipate waste energy as heat to the ATF. Does your transmission guy have a VAG-Com to measure the temp and perform a proper fluid level check? My sisters Jetta did the same thing after a fluid change at the dealer. What your problem sounds like is a slipping set of clutches. Contaminated Transmission Fluid A torque converter is filled with automatic transmission fluid (ATF). Notice that it has tabs. If the converter's seals have gone bad, the fluid used to transmit power from the engine to the transmission could be leaking. All of this points toward a torque converter, solenoid or electronic problem, not necessarily a failing transmission. The Signs And Causes Of Torque Converter Problems A torque converter is a component used in a vehicle with an automatic transmission. Line pressure testing can help identify many different problems. You may have to register before you can post: click the register link above to proceed. 10 fluid was real deal from Mercedes, but Mercedes introduced their "Backwards Compatible Fluid" which was great for the 722. when the engine and trans are bolted together the torque converter bolts draw the torque converter to the flex plate. When being rebuilt, the torque converter is cut open, washed and machined, the bad parts are replaced and it is bonded back together, welded, balanced, and tested for leaks. They have since told me that I need to get the torque converter rebuilt as it is slipping. Transmission pumps are driven directly from the engine through the torque converter. GM and Chrysler have bulletins pertaining to this problem on some models of their vehicles. There are four different problems that can arise in the torque converter. In vehicles with an automatic transmission, the torque converter takes the place of the mechanical clutch, allowing the load to be separated from the power source. But cars with an automatic transmission have no clutch that disconnects the transmission from the engine. It is caused by a chemical breakdown in the transmission fluid, which in turn causes the frictional material in the torque converter's clutches to become contaminated, cooked, damaged, and corroded. Letting the transmission run out of fluid is a surefire way of causing some serious damage. Too much clearance will prevent the converter from fully engaging the front pump during acceleration, which causes the gear to rock and whine. This has the benefit of increasing fuel economy as well. Heat is the biggest enemy of your converter and transmission. You really should flush the old oil out if its that bad! you can do this by removing the oil cooler pipe on the front right hand side of the transmission and put it in a bucket run machine till oil comes clean then top transmission back up. the thing that worries me is how much damage did it do to the rest of the transmission driving it with the wrong fluid in it and the torque converter going out (metal shavings pumped throughout the transmission) what is going to happen say 50,000 miles. I have also noticed, the best way I can describe it, a whining/rubbing noise.