V 3500 P/U 4WD V8-454 7.4L (1987)
Oil Pressure Switch (For Fuel Pump): Locations
LH side of V8-454/7.4L
LH Side Of Engine
Applicable to: 4L engine. 1987 R & V series
GMC Workshop Service and Repair Manuals
Throttle Position Sensor >
< Auxiliary Fuel Tank Control <--> [Fuel Tank Selector Switch]|Locations|Page 2072
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