P1744
Torque Converter Clutch System Stuck in Off Position
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$33–278 (est.)
Symptoms
- Increased fuel consumption
- Difficulties when shifting gears
- Reduced overclocking efficiency
- Check Engine Light on Dashboard
Causes
- Malfunction of the solenoid valve blocking GTK
- Open or short circuit in control circuit
- Low or contaminated transmission fluid
- Mechanical damage to the torque converter
- Transmission control module (TCM) problems
How to Fix
- Check the level and condition of the transmission fluid
- Diagnose the electrical control circuit of the GTK blocking
- Check the resistance and operation of the solenoid valve
- Scan the transmission control module for additional errors
- If necessary, replace the torque converter