When the P0742 code appears, it means that the amount of torque converter lock up required is not in line with the amount that is actually detected. The transmission control module will detect the slippage on the torque converter clutch when the converter is commanded off.
How do I fix code P0742?
What Repairs Will Fix P0742?
- Replace the torque converter clutch solenoid.
- Replace the torque converter or clutch.
- Change transmission fluid and filter.
- Repair/replace damaged wiring and connectors.
- Repair/replace TCM or ECU.
- Install a rebuilt or remanufactured transmission.
Where is the torque converter clutch solenoid located?
► What Does a Torque Converter Clutch Solenoid do? Positioned between the rear of the engine and the front of the transmission is the torque converter. The torque converter is responsible for transmitting the engine’s torque and power to the transmission.
How do you bypass a TCC solenoid?
To bypass the shift and TCC solenoids, you simply need to connect standard 194 light bulbs to these individual circuits coming from the PCM and then connect the other side of the bulbs to ignition B+. The light bulbs will then serve as a “load” which will simulate the solenoids.
How do I fix code P0744?
What repairs can fix the P0744 code?
- Checking and replacing transmission fluid; if the fluid is found to be very dirty, flushing the system and replacing the torque converter may be required.
- Checking and replacing any shorted or faulty wiring, connectors, and circuitry.
- Replacing the internal transmission harness.
What can cause a P0742 code?
What causes the P0742 code?
- Dirty transmission fluid.
- Low transmission fluid.
- Faulty torque converter clutch solenoid valve.
- Internal mechanical problem with the transmission.
- Torque converter clutch solenoid valve harness or connectors could be bad.
- Torque converter clutch solenoid valve circuit could be shorted or open.
How much does it cost to replace a torque converter clutch solenoid?
The torque converter itself is relatively inexpensive (between $150 and $350, depending on the vehicle), but 5-10 hours of labor is involved since the transmission must be removed in order to replace the torque converter.
Torque Converter Replacement Cost.
| Repair | Cost Range |
|---|---|
| Transmission Shop | $600 to $1000 |
What happens when a torque converter clutch solenoid goes bad?
If the solenoid is faulty, there won’t be an accurate measure of how much transmission fluid is a need which could lead to abnormal fluid pressures. As a consequence, there could be irregular behaviors such as poor gas mileage, engine stalling, among others.
What happens when a torque converter solenoid goes bad?
When the torque converter starts malfunctioning, you may feel shuddering and even slipping in overdrive. You usually notice your car shuddering because it feels like it’s vibrating. Your car will vibrate even when you’re not going very fast. The shuddering makes the car lag and is very noticeable.
Can you replace a torque converter clutch solenoid?
Getting a solenoid replaced varies depending on your vehicle and the level of labor you need. TCC solenoids are not expensive, and you can expect to pay between $15-40 on average. However, for larger vehicles, prices can exceed $100 for the part. Labor will often run between $150-250.
How do you fix a torque converter clutch circuit that is stuck off?
What Repairs Will Fix P0741?
- Replace the torque converter clutch solenoid.
- Replace the torque converter or clutch.
- Change transmission fluid and filter.
- Repair/replace damaged wiring and connectors.
- Repair/replace TCM or ECU.
- Install a rebuilt or remanufactured transmission.
What happens when a shift solenoid fails?
You experience delayed gear shifting and a sense of pulling or slipping when trying to shift between gears. The vehicle will not downshift as you slow down. An inability for the solenoid valve to operate may prevent your car from downshifting, and the engine will continue to rev as you attempt to brake.