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Home >> Pontiac >> 1987 >> 6000 V6-173 2.8L >> Repair and Diagnosis >> Transmission and Drivetrain >> Automatic Transmission/Transaxle >> Testing and Inspection >> Symptom Related Diagnostic Procedures >> 440-T4, (4T60/4T60-E) Automatic Transaxle >> No Converter Clutch Operation >> Less Electronic Control Module (ECM)

Less Electronic Control Module (ECM)

1. Damaged electrical connectors.

2. Pinched wires.

3. Inoperative governor pressure switch.

4. Inoperative 3rd clutch switch.

5. Inoperative 4th clutch switch.

6. Inoperative solenoid valve.

7. Stuck converter clutch shift valve.

8. Stuck converter clutch apply valve.

9. Missing No. 10 check ball.

10. Improperly seated or damaged converter clutch blow off check ball.

11. Damaged turbine shaft seals.

12. Damaged oil pump drive shaft seal.

13. Damaged TCC accumulator piston or seal.