Skip the auto shop - Our mechanics make house calls

Q: Transmission issues, P0742 code

asked by on

Something has gone wrong with the transmission on my car. On one occasion, I couldn't accelerate past 50 mph. I had the oil changed. After reading the codes, there was a P0742 code, indicating that "torque converter clutch circuit is stuck on." I am now wondering how serious this is and how it can be fixed. Can you give me some advice please? Thank you.

A: The torque converter clutch solenoid may be...

The torque converter clutch solenoid may be stuck on or off and causing the problem or you may have an internal problem with clogged passages for the solenoid. Have the solenoid diagnosed and replaced then see if the problem goes away before a more expensive repair, such as overhauling the transmission, is done. I recommend having a certified technician, such as one from YourMechanic, thoroughly diagnose your Check Engine Light code to verify what repairs are needed.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Truck wont accelerate over 20mph. what can it be

Either you have a blocked exhaust like a bad converter, a muffler clogged from a broken up converter, or you have a bad ignition module or fuel pressure problem. First try replacing the fuel filter to see if it is...

Q: Air filter housing

If you are getting oil in the air filter housing, this is from the vapor line coming from your crankcase ventilation. The oil can be from a PCV valve that is clogged and in need of replacement. The valve relieves...

Q: Is a 14' to 15' Altima 3.5 SL worth buying?

With the proper care and maintenance, many of the vehicles today meet and exceed mileage old car makers could only dream of. The key is the proper maintenance and not to abuse the vehicles drivetrain. Consider having a pre-purchase inspection...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...