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

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

Foreign material in separator plate orifice

Notes

Check for a stored DTC, and check for loose connectors.

Notes

Inspect the shift solenoid valve D function with the HDS Shift Solenoid Valve Test, Replacement, and Shift Solenoid Wire Harness Replacement.

Notes

Check for a seized shift solenoid valve, and inspect the O-rings.

Notes

Inspect the 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 the O-rings for wear and damage.

Notes

Check the torque converter check valve, the lockup 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.

Notes

Replace the torque converter.

Notes

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