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A/T - THM 200C In Reverse Range Engine Stops Running

TSB 85-47

SUBJECT: THM 200C

PROBLEM: Engine stops running when in reverse range.

CAUSE:
This condition may be caused by transmission fluid leaking across the pump gear causing the [1][2]torque converter clutch to engage. This can be aggravated by hot transmission oil, high line pressure demand, low idle speed, and large pump drive gear side clearance.

SOLUTION:




Install service package part # 8638951, which contains a pressure regulator valve, part # 8638950. (see illustration)