Diesel Data: Automotive Repair

Torque Converter Clutch Does Not Operate Smoothly; Torque Converter Clutch Does Not Engage Or Disengage




Torque converter clutch does not operate smoothly; torque converter clutch does not engage or disengage

Shift solenoid valve D defective

A/T clutch pressure control solenoid valve C defective

Shift cable broken or out of adjustment

Connection between shift cable and transmission or shift lever is worn

Foreign material in separator plate orifice

Torque converter clutch piston defective

Torque converter check valve defective

Lock-up shift valve defective

Lock-up control valve defective

Lock-up timing valve defective

Notes

Test the shift solenoid valve D with the HDS Service and Repair.

Notes

Inspect the O-rings, and check for a seized shift solenoid valve.

Notes

Test A/T clutch pressure control solenoid valve C with the HDS A/T Clutch Pressure Control Solenoid Valve C Test.

Notes

Inspect the A/T clutch pressure control solenoid valve C body gasket, the ATF feed pipes, and O-rings for wear and damage. If the A/T clutch pressure control solenoid valve C is stuck, inspect the CPC valves.

Notes

Center all engine mounts.

Notes

Check for a loose shift cable at the shift lever and the selector control lever.

Notes

Check for a clogged orifice in the separator plate. If the orifice is clogged, remove it and clean the separator plate orifice.

Notes

Replace the torque converter.

Notes

Check the torque converter check valve, the lock-up shift valve, and the lock-up timing valve in the main valve body for free movement, and check the valve springs for wear and damage.

Notes

Check the lock-up control valve in the regulator valve body for free movement, and check the valve spring for wear and damage.