1987 Chevy Blazer Fuel Pump?

TNMOONSHINE

MEMBER
1987 CHEVROLET BLAZER
6 CYL
4WD
AUTOMATIC
155,000 MILES

Hey Guys, here is the problem. I thought I ran out of gas. So we put fuel in the vehicle and still would not start. We could not here the fuel pump kick on when we turn the key on. So we changed out and put a new fuel pump in. And still the new pump would not kick on when turned key on. So then we discovered that the Fuse was blown. So we changed fuse and vehicle started. But when we drove about 2 miles the vehicle died again and would not start. It had blown a fuse again. So we changed fuse and it started again and ran about 2 miles and died and blowed fuse again? This did it about 2 more times efore we made it back home changing fuses. But it will also fill likes it is shifting gears back and forth and like it is still staring for fuel it will sputter intermittenly. Got any help for me. Thanks

1 Reply

INTERNETMECHANIC

MECHANIC
700 POSTS

Are you talking the ecm B fuse is blown? Unplug the oil pressure switch, see if it helps? There may be two such switches, one is located close to oil filter, for lite and or gage on the dash, the other is in the fuel pump circuit. Maybe located high on engine left rear. Note the wiring colors in the diagram.
You can unplug the relay, use a jumper with inline fuse from battery voltage to terminal for tan/white wire, if the pump runs without blowing the fuse, that part of the circuit is ok.