P1740
Torque Converter Clutch or Overdrive Solenoid Performance Condition
Severity
⚠️ MediumCan you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–89 (est.)
Symptoms
- Gear shifting problems
- No torque converter lockup
- Increased fuel consumption
- Vibrations when driving
- Check Engine Light Illuminates
Causes
- Overdrive solenoid malfunction
- Problems with the torque converter clutch
- Open or short circuit in control circuit
- Low or contaminated transmission fluid
- Problems with the transmission control unit
How to Fix
- Check the level and condition of the transmission fluid
- Diagnose the electrical circuit of the solenoid
- Check overdrive solenoid resistance
- If necessary, replace the solenoid or clutch of the gas turbine engine
- Reset error and test drive