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Home >> Oldsmobile >> 1974 >> Custom Cruiser >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel Pumps >> Inspection & Testing >> Electric Pumps

Electric Pumps

On systems using electrically operated fuel pumps, test for adequate voltage and current supply at the wiring terminal or connector at the fuel pump while the engine is running. Electric fuel pumps are energized through the ignition switch or starter solenoid while the engine is being started, then are supplied current through action of the oil pressure sender switch once the engine is running.