P0741
Torque Converter Clutch Circuit Performance/Stuck Off
2004-2007 Buick Rainier 4.2L I6
High SeverityPowertrainGeneric (SAE)
Description
The TCC is not engaging when commanded. The engine RPM is not dropping as expected when lockup is commanded.
Symptoms
- Check Engine Light
- Higher than normal highway RPM
- Poor fuel economy
- Transmission overheating
Common Causes
- TCC solenoid failure
- Worn TCC friction material
- Low line pressure
- Valve body issue
- Internal converter failure
Diagnostic Steps
- Command TCC with scan tool and monitor RPM drop
- Test TCC solenoid
- Check line pressure
- Check transmission fluid condition
Repair Notes
TCC solenoid replacement. If internal converter damage, torque converter replacement.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P0741 on Other Vehicles
Common Questions
What does code P0741 mean on a 2004-2007 Buick Rainier?
P0741 stands for "Torque Converter Clutch Circuit Performance/Stuck Off". The TCC is not engaging when commanded. The engine RPM is not dropping as expected when lockup is commanded.
What are the symptoms of P0741 on a Buick Rainier?
Common symptoms of P0741 include: Check Engine Light, Higher than normal highway RPM, Poor fuel economy, Transmission overheating.
What causes P0741 on a 2004-2007 Buick Rainier?
Common causes of P0741 include: TCC solenoid failure, Worn TCC friction material, Low line pressure, Valve body issue, Internal converter failure.