Torque Converter Clutch Does Not Disengage

Torque converter clutch does not disengage

Shift solenoid valve D defective

A/T clutch pressure control solenoid valve C defective

Torque converter clutch piston defective

Lock-up shift valve defective

Lock-up control valve defective

Lock-up timing valve defective

Notes

Inspect the shift solenoid valve 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 body gasket, ATF feed pipes, and the O-rings for wear and damage.

Notes

Replace the torque converter.

Notes

Check 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.