I have a 2002 GMC 4.3L sonoma.replaced fuel pump, oil pressure sensor,pump relay switch no fuel pressure.checked fuel pressure reg. spider injector system for leaks no leaks. turn key to on got pressure. put parts back went to test pressure ,0 pressure again. injector body makes funny noise now. could injector body cause 0 pressure problem? should it be replaced?

25

Asked by Dec 14, 2014 at 06:54 PM about the 2002 GMC Sonoma SLS Crew Cab 4WD

Question type: Maintenance & Repair

3 Answers

71,225

A bad fuel regulator,can cause this.

1 of 1 people found this helpful.
25

still 0 pressure no leaks.

25

I found a short with the ground wire for to ecm/pcu grounding out on the knock sensor postive and negative side wires. could this burn out my ECM/PCU?Truck still won't start.

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