Mechanics

CHEVROLET SUBURBAN FUEL PUMP PROBLEM

1991 Chevrolet Suburban • 118,000 miles

Why will a 1991 chevy suburban 5.7 2500 start and run for fifteen seconds and then stop? I have replaced the ecm, fuel pump module, fuel pump relay, and the ignition module. Vehicle will lose power after fifteen seconds at the fuel pump.
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Dg2960
December 28, 2012.



What is the actual fuel pressure?

Roy

ASEMaster6371
Dec 28, 2012.