Diesel Data: Automotive Repair

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

Test shift solenoid valve E with the HDS Shift Solenoid Valve Test, Replacement, And Shift Solenoid Wire Harness Replacement.

Notes

Inspect the O-rings, and check for a seized shift solenoid valve.

Notes

Test A/T clutch pressure control solenoid valve A with the HDS A/T Clutch Pressure Control Solenoid Valve A Test.

Notes

Inspect the A/T clutch pressure control solenoid valve body gasket for wear and damage.

Notes

Center all engine mounts.

Notes

Replace the torque converter.

Notes

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

Notes

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

Notes

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