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GMC Truck
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1991
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S15/T15 2WD P/U L4-151 2.5L
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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Oil Pressure Sensor
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Testing and Inspection
Oil Pressure Sensor: Testing and Inspection
Refer to
DIAGNOSTIC CHARTS/FUEL PUMP RELAY CIRCUIT DIAGNOSIS (CHART A-5)
, for fuel related
oil pressure switch
problems.