P0740 vw

While engine trouble codes are somewhat well understood these days, automatic transmission codes are still confusing many out there.

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. The code is still pending and isnt official but i fear it will be as its a new issue that arous. First time i seen it. Also i have a code for evaporative emission control system malfunction that just came up recently.

P0740 vw

Log in. Sign up. Home Forums New Beetle 1. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. Anybody know what this means in terms of a repair. Symptoms sometimes appear while driving on highway and accelerating engine rpms go up with no increase in vehicle speed. Let up on accelerator for a bit and its back to normal and accelerates properly. Sort by Oldest first Oldest first Newest first Most reactions. First thing I would do is check the fluid and top it off, not as hard as you might think. Once the fluid is known to be at the proper level, then the next thing is how many miles on the trans and does it shift correctly? Valve bodies in these transmissions are all crap after k miles anyway. It was supposedly changed and filled 3 years ago when we got the car I would say the valve body is bad, almost all of these VW valve bodies wear out.

Your 1st bullet point is just failsafe for p code, p0740 vw. Also, is there a test that I can put my EGR through to see if it's working properly?

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Are you facing some problems with erratic shifting and you have diagnosed the P code? Well, if that is the case, then you are at the right place because there will be a lot to cover on this topic where we will learn how to tackle this problem. Having a problem like this can be a really frustrating thing to deal with. Mainly because it greatly affects your transmission and its ability to shift gears. You will face a ton of problems down the alley trying to figure it out how to tackle this problem with your car but sometimes the solution is really simple. But more on that later on in this article, what is important for you now is to understand the basics of car diagnostics and how this work is performed on a car. Knowing this stuff will save you a ton of money and also will make you a better mechanic and a better person. Who knows, someday maybe you will be someone who will make money from fixing cars and this is why we are here to encourage you and teach you how this is done. First, we will cover the basics of car diagnostics, then we will discuss the basics of torque converter automatics and how they work. Then we will elaborate more on the P and learn why this code appears in the first place and we also going to discuss the TCC Solenoid.

P0740 vw

This is one of the most frequent OBD2 trouble codes. Read the full article below to know what it means, how to fix it, and what other codes may show related to it. This code shows that there is a malfunction with the torque converter clutch circuit. The electrical control unit has detected a problem with the circuit controlling the torque converter clutch solenoid. The make and model of the vehicle can have an impact on the ways that the diagnostic and repair process should be performed. This means that the specific instructions from the manufacturer of the vehicle may have to be referenced. The P code means that something unusual has been detected by the powertrain control module PCM within the torque converter clutch circuit. The application of the torque converter clutch can be varied by the powertrain control module to optimize the performance of the vehicle. Multiple applications of the torque converter clutch is considered abnormal. This will trigger the powertrain control module to illuminate the check engine light on the dashboard.

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If your transmission is overheating, that usually means that the clutch is not activating when necessary, further implicating the TCC solenoid. Good luck. Let up on accelerator for a bit and its back to normal and accelerates properly. Basically you have three choices. Also most replace the internal transmission wiring harness due to issues with the connectors. A new valve body was installed according to the shop although now I am a bit suspect. I thought it was a control problem at first so I replaced the engine speed sensor on the side of the engine behind the oil filter, the trans input sensor on the side of trans, and the sensor under the motor mount. The diagnostic problem lies in that there is no way to measure this pressure, but even if you could all you would see is low pressure. Learn how your comment data is processed. There is a silver lining here, though.

No matter how much experience you have working with cars, the Check Engine Light always causes a moment of fear. In this guide, we explain the meaning of the P DTC. We look at some common symptoms and show you what might be causing the problem.

Transmission Issue P Do try cleaning first. If I try to put it in reverse, or drive, then the car will sputter and then turn off. Insert Quotes Quotes Post Reply. A new valve body was installed according to the shop although now I am a bit suspect. Media New media New comments Search media. There is no conclusive test to pinpoint the cause of P This is a check engine light code that could potentially make your vehicle difficult, or impossible to drive altogether. The valve body causes the code because the pressure that should be going to apply the torque converter clutch "leaks" through the wear in the valves and "falls" into the pan, rather than applying the clutch. Awesome info, thanks a lot. The torque converter works by utilizing transmission fluid to transfer the power from the engine to the transmission. Got it. I had purchased new torque converter and solenoids which were installed during rebuild. Explore Our Forums. Problem is this pressure can also leak at other areas in the trans, like the stator, pump or the converter itself.