Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Buick >> 1994 >> Roadmaster Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 7 (Engine Controls - System/Component Tests) >> Fuel System >> Fuel Delivery >> Oil Pressure Switch Fuel Pump Back-Up

Oil Pressure Switch Fuel Pump Back-Up

WARNING: This page is about a different car, the 1994 Cadillac Fleetwood. However, it is still accessible from the selected car via links, so may be relevant.

With engine idling, disconnect fuel pump relay. Engine should continue to run through oil pressure switch back-up circuit. If engine stalls, check oil pressure switch and related wiring.