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 E defective

A/T clutch pressure control solenoid valve A defective

Torque converter clutch piston defective

Torque converter check valve defective

Lock-up shift valve defective

Lock-up control valve defective

Input shaft (mainshaft) speed sensor defective

Output shaft (countershaft) speed sensor defective

Notes

Inspect shift solenoid valve E operation with the HDS Shift Solenoid Valve Test, Replacement, and Shift Solenoid Wire Harness Replacement (A/T).

Notes

Inspect A/T clutch pressure control solenoid valve A with the HDS.

Notes

Inspect shift solenoid valve E for seizure, and the O-rings for wear and damage.

Notes

Inspect the A/T clutch pressure control solenoid valve filter/gasket and the O-rings for wear and damage, and inspect the solenoid valves for seizure.

Notes

Check the input shaft (mainshaft) speed sensor and the output shaft (countershaft) speed sensor installation.

Notes

Replace the torque converter.

Notes

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

Notes

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