What does p0742 mean on a Chevy?
P0742 CHEVROLET Meaning. The Torque Converter Clutch (TCC) solenoid valve is a normally-open exhaust valve that is used with the Torque Converter Clutch Pulse Width Modulation (TCC PWM) solenoid valve in order to control fluid acting on the converter clutch apply valve.
Where is the TCC solenoid valve on a car?
The TCC solenoid valve attaches to the transmission case assembly extending into the pump cover. When grounded (energized) by the Powertrain Control Module ( PCM ), the TCC solenoid valve stops converter signal oil from exhausting.
When does the PCM detect low torque converter slip?
When the PCM detects low torque converter slip when the PCM commands the TCC OFF, then is sets the P0742 code.
How does the converter clutch apply the TCC?
This causes converter signal oil pressure to increase and move the converter clutch apply valve against spring force and into the apply position. In this position, release fluid is open to an exhaust port and converter feed fluid fills the apply fluid circuit. The converter feed fluid applies the TCC.
What happens when the DTC is stuck on p0742?
If any additional transmission related DTC’s appear in addition to the P0742, an electrical failure is likely. Symptoms of a P0742 trouble code may include: Stuck On Indicator Lamp (MIL) illuminated (a.k.a. Check Engine Light) If the torque converter clutch is actually stuck on, the engine may stall at idle.
What does the p0742 code on a Buick mean?
When the Powertrain Control Module (PCM) no longer provides a ground path, the Torque Converter Clutch (TCC) solenoid valve de-energizes and apply fluid exhausts, releasing the TCC. When the PCM detects low torque converter slip when the PCM commands the TCC OFF, then is sets the P0742 code.
The TCC solenoid valve attaches to the transmission case assembly extending into the pump cover. When grounded (energized) by the Powertrain Control Module ( PCM ), the TCC solenoid valve stops converter signal oil from exhausting.
When the PCM detects low torque converter slip when the PCM commands the TCC OFF, then is sets the P0742 code.
What causes a torque converter clutch code of p0742?
The P0742 code can be caused by a variety of things. The following are the most common: 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.
What does p0740 mean on a Transmission Control Module?
The P0740 indicates that the transmission control module recognizes a problem with the torque converter clutch circuit. Automatic cars usually use a converter to transfer the power between the engine and the transmission. This torque converter does actually consists of transmission fluid, which helps the engine to move forward.
How much does it cost to repair a p0742 Buick?
The cost of diagnosing the P0742 BUICK code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour. When is the P0742 BUICK code detected?
The P0742 code can be caused by a variety of things. The following are the most common: 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.
What causes an OBD code of p0742?
The P0742 code can be caused by a variety of things. The following are the most common: 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
The P0740 indicates that the transmission control module recognizes a problem with the torque converter clutch circuit. Automatic cars usually use a converter to transfer the power between the engine and the transmission. This torque converter does actually consists of transmission fluid, which helps the engine to move forward.