This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. What the P code means is that the powertrain control module PCM has detected something unusual within the torque converter clutch circuit. The powertrain control module can vary the application of the torque converter clutch for optimal vehicle performance.
4L60E :: 4L65E Torque Converter, Lock Up, Codes TMAX, TMBX
If the torque converter clutch application is abnormal usually multiple times the powertrain control module will trigger a Check Engine Light. A mechanic may begin the diagnosis of the P code by first checking the transmission fluid for proper level and condition.
If anything is out of the ordinary, this could be part of the problem. If nothing is wrong with the transmission fluid, the mechanic would then use service information to look up a diagnostic procedure for this code given by the manufacturer and then follow the instructions given.
Keep in mind that this diagnostic may require the transmission to be removed or even disassembled.
An easy mistake that could be made is assuming that the torque converter is damaged just because this part is listed in the trouble code.
This may result in a lot of money being spent to have it replaced, when it may just be the fluid level needing to be topped off. It is important to look at every aspect of each problem to get to the correct solution as quickly and efficiently as possible. The P code can be very serious as it can cause drivability issues. This is one of the codes that can leave a driver stranded on the side of the road. A good running engine means nothing without a properly operating transmission to transfer the engine power to the wheels.
It is a good idea to have this issue diagnosed and repaired as soon as possible. In order to help prevent trouble codes such as the P code, it is a good idea to replace the transmission fluid in your vehicle along with the filter if applicable at the recommended intervals. Doing this will ensure that the internal parts of the transmission stay well lubricated and also prevents debris from causing a restriction within the transmission.
YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at With YourMechanic you can skip the auto shop altogether.These high-quality units are available for same- or next-day delivery to most shop locations throughout the United States. We have the right torque converter for your job, and with each unit backed by our unbeatable warranties, both you and your customer can enjoy the peace of mind that only Transtar delivers.
Our unmatched 5-step remanufacturing process combines the precision of computers with the experience of engineers to ensure consistently high quality is achieved. Learn More Here. Reference numbers can be many things. Codes on a torque converter can come in many forms.
Often, the code is not enough to ensure you get the correct replacement product as some codes are used on multiple torque converters. Make sure that when you talk to your Transtar sales rep, you give them both codes as well as the complete vehicle information to ensure you receive the correct product.
Transtar does not publish an industry part number interchange, but you can order a Transtar torque converter by using almost any competitors part number. Talk to your Transtar sales rep to make sure you are getting the correct part on your order. Often the torque converter is not the root cause.
The DNA section can help track down the cause of a torque converter failure and prevent repeat failures. Used and quality-inspected parts are sold as-is with no warranty.
Product should be thoroughly inspected prior to installation. Any manufacturer, third-party, extended warranties, or limited lifetime warranties, should be handled through the manufacturer. E-mail us at: corebuyers transtar1. Home Products Torque Converters. Specializing in reliable, yet affordable, sealed torque converters, CVC torque converters are among the most popular in the industry. Their unique process combines the skillful experience of bench craftsman with the industrial engineering production line.
Racing fans will get a rush not just from the quality of the product, but also from the speed of delivery. FAQ How do I know what the torque converter reference number is?
I think my torque converter is causing problems. What should I do? What color are Transtar torque converters? What is Transtar's Warranty on torque converters? Do you have Cores to Sell?Log In or Create Account Optional. Log Into My Account. Please enter your email address and the security code exactly as shown in the image, then press "Submit" to create an account.
Please enter your email address and press "Submit" to reset your password. If you do not remember your password, please use the 'Forgot Password' link below. New Image. Mobile Site. Manufacturer names and logos in the RockAuto catalog are trademarks of their respective companies and are used only to identify their products.
All rights reserved. GEAR S. Not sure what a part is called? Enter a few keywords below. Please click 'Part Catalog' tab above to find your vehicle and verify application. See INFO page for part specs. Category: Torque Converter. Add to Cart. Please create a password for your account. Please set a password for your account. Security Code. Password New Password. Confirm New Password. Keep Me Logged In. Gift Certificates.
About Us. Repair Index Calculator.Aisin Warner See all Back. Borg Warner See all Back. Citroen See all Back. Daewoo See all Back. Delorean See all Back. Dodge See all Back. Eagle See all Back. Ferrari See all Back. Fiat See all Back. Ford See all Back. Fuso See all Back. Holden See all Back. Honda See all Back. Hyundai See all Back. Infiniti See all Back. International See all Back.
Isuzu See all Back. Jaguar See all Back. Jatco See all Back. Jensen See all Back. Laforza See all Back. Land Rover See all Back. Lexus See all Back.
Lotus See all Back. Mazda See all Back.Remember to soak all of your clutches in transmission fluid for thirty minutes before you install them. The torque converter that comes in this kit is balanced and pressure tested and has the heavy duty brazed turbine and Torrington bearings.
This converter has a stock stall speed and will be fine for up to hp. The Transgo shift kit included in this kit, corrects prevents, or reduces the following complaints. This shift kit has a newly designed isolator converter valve that works perfect in worn bores without special tools or machining. Along with fixing these common problems, you'll also see an increase in the life of your transmission due to the reduced slippage.
The 4L60E and its variants were in production from and can be identified by the square 16 bolt oil pan and 4 forward gears. If unsure of your model, the 4L60E can be differentiated by looking at the wire plug going into the transmission. The non-electric shift will have a square wire plug with wires. The 4L60E will have a round plug with 11 wires.
These transmissions can be found in the following vehicles; however you should double check your application with the 16 bolt pan count. It is common for similar vehicles to have multiple transmission options available from the factory. Sign Up for our Newsletter today!P0741 TCC stuck off / tcc performance
Application: Please Select One 4. Boost valve: Please Select One No valve. Write a Review.I have a killer recommendation for a factory replacement torque converter for the Impala. GM offers torque converters of several different stall speeds for the 4L60E, 4L60, and R4 transmissions. The higher stall speed also means greater torque multiplication which improves acceleration off the line. This also virtually eliminates the annoying creep while idling in drive as well as the clunk you sometimes get when shifting from park into either drive or reverse.
You can tell which converter you have by a 4-digit alpha code found on a sticker attached to the converter. Here are the codes on three converters I have seen:. The stock Impala converter stalls at under rpm!! Going to the S10 converter increases stall speed by rpm, which feels very good indeed. Aftermarket converters are available in even higher stall speeds, but the factory rpm converter is an excellent, low cost upgrade that offers a very noticeable effect on performance without being too radical.
After having one of these in my car for some time now, I'm not sure I would want anything that stalls any higher. One area that some of the better and more expensive high stall aftermarket converters will excel in is durability in high HP applications.
While the stock converter can live behind to HP with few problems, going to HP or more can be pushing it.
Actually in my experiences the trans will go before the converter, unfortunately when the trans goes the debris usually takes the converter with it of course the opposite is also true. Originally I had been recommending the ''86 Corvette torque converter as an Impala upgrade.
As you can see from the 2nd digit code this is a K converter, which is the highest stall factory converter available for the R4, 4L60, and 4L60E transmissions. The original part number for the ''86 'vette converter waswhich was later changed to What I have found is that GM only sells torque converters as what are called remanufactured units, but depending on the converter application you order, you may actually get a new converter instead of a rebuilt unit.
Unfortunately since the ''86 'vette is an older application, you will almost certainly get a rebuilt converter if you order under that part number. Not only will the converter be used rebuiltbut since then some of the internal components have been upgraded. This new converter uses the same basic internal components stators, etc. GM ranks converters by what they call a "K-factor", which indicates torque capacity and the resultant stall speed.
Mark McPhail of GM Motorsports says both the '95 L35 Truck and the '85 Corvette converter described here have the same K internals, resulting in the same stall speed given the same engine torque output. Since stall speed varies with engine torque, GM gives a rating of rpm, however it feels to me like this converter stalls at around rpm in a stock Impala.
I asked him why he would recommend this converter over the 'vette unit, and he gave two reasons. One is that since the L35 Truck converter is listed under a new part number for and newer applications, you are much more likely to get a brand new one when you order it instead of a remanufactured unit. Indeed everybody I know who has ordered the Corvette converter has received a remanufactured unit including myself.
That may explain the code difference in the third digit. This does not affect performance per se, but apparently reduces noise and possible shudder or vibration when the TCC engages. Note that although the 4th digit code is different in the S10 and 'vette converters from the stock Impala converter code "F" vs. Finally, this new converter costs exactly the same as the 'vette converter.
The stall speed is rpm higher than stock but is not in anyway too high for even a completely stock Impala. Remember this is a factory mm Return to Technical Forum.As illogical as it might sound, if you have a performance car equipped with an automatic transmission one of the best ways to make it faster actually has nothing to do with adding any more power to the engine.
Whether you want to be competitive at the drag strip, or just get the most out of your bolt-ons — one of the best things you can do for your automatic car is swap in a performance torque converter. But, torque converters are anything but a one-size-fits all modification.
You need a torque converter that fits your car, your engine, and how you drive it. The first step to figuring out what torque converter is right for you is understanding just what a torque converter really is, and how it operates. Torque converters come from the factory welded up, so its pretty hard to get a look inside and see what makes them tick.
From the right counter-clockwise, you can see the cover which bolts to the flexplatethe impeller pump which slides over the transmission input shaft the turbine, and the stator. The fins inside the torque converter are like two fans blowing against each other only with fluid instead of air.
Eventually one fan will blow harder and over power the other fan, making it spin in the same direction. The turbine side of the converter that is bolted to the flex plate will always spin at the same speed as the engine, while the pump side will slip to a certain point and let the engine keep turning, while you come to a stop.
Once the engine reaches a certain RPM, the fluid will be moving fast enough through the torque converter that the two sides will begin to couple and the car will start to move forward. Torque Converters are all about the stall…you want your torque converter to stall at the RPM where your engine has its peak torque output, giving you the hardest launch possible.
Changing the size, shape, and number of fins inside a torque converter will affect what RPM it will stall at. If you think about it, the internal dynamics of the converter are going to be very different when the output side is being held motionless compared to when it starts to rotate, so a converter manufacturer can tailor both foot brake and flash stall speeds to get the most out of a car without overwhelming the available traction. Ideally, you want a converter that stalls at an RPM that lets the car leave as hard as possible without breaking traction, then flashes up to a speed where the engine is getting into the fat part of the power curve.
Nitrous cars on the other hand are an example where the engine may not be making very much torque at all sitting there on the trans brake, compared to how hard it hits when the first stage of nitrous comes on. Ironically, most of those factors have little or nothing to do with the transmission itself. They are…. So how do you pick the correct torque converter for your car?
Easy; you ask a professional. We went to the guys at TCI Automotivewho have been making high performance torque converters for some of the most brutal drag cars around for over 40 years. The stator is the brains of this operation. Simple enough, right? You, no doubt, want to understand why a torque converter is right or wrong for your car. So we asked Miller to give us a rundown of the specific factors that TCI takes into account when recommending a torque converter for a specific car.
Rear Gear Ratio. The overall height of your rear tires can have a big effect on what kind of flash stall you need in your car. The taller the tire is the more revolutions of the driveshaft it will take to turn it, so a tall tire effectively makes the car behave like it has high gears in it.