Fuel issue

WILLIE SIDEL

MEMBER
1993 GMC TRUCK
6.5L
V8
TURBO
4WD
AUTOMATIC
111,194 MILES

Started out on my way home and it spit and sputtered like it was running out of fuel, so I kept going on a prayer. Got home then shut it off waited two hours until it was completely cold. It would not start so I filled the fuel filter full of diesel then after five to ten seconds of cranking it starts. So I check the water drain T valve I crank it open and all I get out of the hose is a drop here and there no steady stream. Help?

1 Reply

ASEMASTER6371

MECHANIC
52,797 POSTS

Good morning.

You have a fuel pump or lift pump that is on the frame rail. It provides fuel from the tank to the injector pump. When this fails, there is not enough fuel for the truck to run.

Roy

REMOVE
1. Negative battery cables
2. Electrical wiring from the pump
3. Harness from the pump support bracket
4. Fuel lines from the pump

Use two wrenches to remove the lines

5. Pump support bracket screws
6. Support bracket from the brake lines
7. Pump and bracket from the frame rail

INSTALL

1. Pump and bracket to the frame rail
2. Support bracket to the brake lines
3. Pump support bracket screws
4. Fuel lines to the pump

Use two wrenches to remove the lines

5. Wiring harness to the support bracket
6. Electrical wiring to the pump
7. Negative battery cable

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