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Home >> GMC >> 1992 >> Forward Control 5.7 K, Standard >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Diagnosis - A/T >> Diagnostic Code Charts (Trucks) >> Code 87, Shift Solenoid "B" Stuck "Off" - LT. Truck >> Diagnostic Aids

Diagnostic Aids

Check all connections. especially those at the transmission pass-thru connector. Fault may be an internal transmission problem.

Fig 1: Code 86, Shift Solenoid "B" Off Troubleshooting (Lt. Truck)
G91H13695Courtesy of GENERAL MOTORS CORP.
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