Torque Converter Clutch Does Not Operate Smoothly

Torque converter clutch does not operate smoothly

Diagnostic Procedure:

1. Shift solenoid valve E defective

2. A/T clutch pressure control solenoid valve A defective

3. Torque converter clutch piston defective

4. Torque converter check valve defective

5. Lock-up shift valve defective

6. Lock-up control valve defective

Also check for:

- Check the D indicator, and check for loose connectors.
- Inspect the solenoid valve filter/gasket and the O-rings for wear and damage, and inspect the solenoid valves for seizure.
- Replace the torque converter.