Torque Converter Clutch Circuit Performance or Stuck Off
Table of contents
- Possible Causes
- How To Fix
- Tech Notes
- Cost To Diagnose
- When is the code detected
- Possible Symptoms
- Description
P0741 OLDSMOBILE Possible Causes
- Low transmission fluid level
- Dirty transmission fluid
- Faulty torque converter clutch solenoid valve
- Torque converter clutch solenoid valve harness or connectors
- Torque converter clutch solenoid valve circuit is open or shorted
- Transmission internal mechanical problem
How do I fix code P0741 OLDSMOBILE?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Tech Notes
- There is a factory service bulletin for the following Oldsmobile Models:
- 2001-2002 Oldsmobile Intrigue
- 2001-2003 Oldsmobile Silhouette
- 2001-2004 Oldsmobile Silhouette EXT
- Oldsmobile Factory Service Bulletin OBDII Code P0741
Cost of diagnosing the P0741 OLDSMOBILE code
The cost of diagnosing the P0741 OLDSMOBILE code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
When is the code detected
Lock-up does not occur when driving in lock-up range or lockup remains ON in lock-up OFF range
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0741 OLDSMOBILE Description
The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control Module (ECM). Lock-up piston operation will then be controlled. When the torque converter clutch solenoid valve is activated, the torque converter lockup clutch will engage creating a 1 to 1 RPM ratio between the transmission input shaft and the rotational speed of the torque converter.
Lock-up operation, however, is prohibited when A/T fluid temperature is too low.
When the accelerator pedal is depressed (less than 2/8) in lock-up condition, the engine speed should not change abruptly. If there is a big jump in engine speed, there is no lock-up.
