1989 Chevrolet R2500 Suburban Silverado 7.4L Fuel Pump
fuel pump keeps running after engine is shut off. Disconnected fuel pump relay and oil pressure switch and the fuel pump continues to run. I then pulled the ECM fuse and it finally shut the fuel pump off. Is this a possible ECM problem?
FIX posted 7/12/2012
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Vehicle Data1989 Chevrolet R2500 Suburban Silverado
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Vehicle Data
1989 Chevrolet R2500 Suburban Silverado
VIN | 1GNGR66N7K |
Engine | 7.4 L / 8 cyl / GAS |
Trans | 3-speed Automatic |
Delivery | Fuel Injection |
Affected | Fuel Pump |