Chevrolet Repair: 1988 chevy g20 van no fuel flow, radiator hoses, fuel pump relay

Question
I get no fuel to the injector body. I have just about rebuilt the van new 2 new brains 7 fuel punps cleaned fuel tank, new motor, distributor tranny ,radiator, hoses, o2 sending unit, coil ect ect  an I have the same problem , no fuel flow to the injector body.  The injectors were replaced first. Ive had no luck in commercial mechanics out side of them tacking large sumes of money an not fixing the problem  can u help.


                  Don dyer

Answer
Fuel pump test:

1. Get yourself a helper.

2. remove the gas cap.

3. have one person listen in the gas tank at the gas cap opening.

4. have the other person turn the ignition switch to the ON position ONLY so as the dash lights come on. Do NOT attempt to start the engine.

5. As soon as the ignition key is turned to the ON position, The person at the gas tank should hear the fuel pump run for TWO SECONDS and then it should STOP.

6. Does it ?.


If you do NOT hear it run, in most cases the fault is the fuel pump relay or the fuel pump. itself.

IF you DO hear the pump run check the fuel pressure.



let me know.


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