Operation CHARM: Car repair manuals for everyone.

No Lockup

1. Defective cruise control switch.
2. Defective throttle sensor.
3. Defective shift solenoid or 3-2 control solenoid.
4. Defective turbine sensor.
5. Defective lockup control solenoid.
6. Incorrectly adjusted selector lever.
7. Malfunctioning control valve(s).
8. Defective torque converter.