Torque Converter Clutch Does Not Operate Smoothly

Torque converter clutch does not operate smoothly

A/T clutch pressure control solenoid valve D defective

Drive plate defective or transmission incorrectly installed

Torque converter clutch piston defective

Torque converter defective

Torque converter regulator valve defective

Lock-up control valve defective

Notes

Inspect A/T clutch pressure control solenoid valve D with the HDS A/T Clutch Pressure Control Solenoid Valve A, B, C, and D Test.

Notes

Check for an incorrectly installed transmission, and check the drive plate for wear and damage. Replace the drive plate if it is worn or damaged.

Notes

Check the stall speed A/T Stall Speed Test.

Notes

Replace the torque converter.

Notes

Be careful not to damage the torque converter housing when replacing the main ball bearing. You may also damage the ATF pump when you torque down the main valve body. This will cause ATF pump seizure, use the proper tools.

Notes

Check the torque converter regulator valve and the lock-up control valve in the regulator valve body for free movement. If the valves do not move, replace the regulator valve body.