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

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

Foreign material in separator plate orifice

Torque converter clutch piston defective

Torque converter check valve defective

Lock-up control valve defective

Lock-up timing valve defective

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 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 springs for wear and damage.