P0742
PowertrainTransmissionhigh severityTorque Converter Clutch Circuit Stuck On
What P0742 Means
The TCC is not releasing when it should, causing the engine to stall or shudder at low speeds.
Symptoms
- Stalling when coming to a stop
- Shudder at low speed
- Vehicle lunging at stops
- Check Engine Light
Common Causes
- TCC solenoid stuck on
- Valve body issue
- Wiring short keeping solenoid energized
Diagnostic Steps
- Monitor TCC engagement state
- Test solenoid
- Check valve body
- Check wiring for shorts
Where to start: Replace TCC solenoid. Driving with TCC stuck on causes stalling.
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