Question about 2000 GMC Jimmy
Died in driveway. recently had new wires and plugs. started and ran about one minute after replacing fuel filter. what do u check next? pressure regulator? fuel pump definitely working.
SOURCE: 1999 Yukon cold start problems.
1999 Yukon Start Issue - I have replaced the octopuse, battery, fuel filter, fuel pump, still having problems starting in cold weather, sometimes after a heavy rain.
Posted on Dec 08, 2008
When you hook the pressure test guage to shrader valve on fuel rail what it reads is what the pressure is from pump, around 60 p.s.i. all you need to do is hook up the guage and turn on key, you do not have to turn engine over, and if pump is good it will shoot up to 58 or 60 right now.
Posted on Feb 14, 2009
the fuel pressure if leaking could cause this the regulator is located under the intake plenum but you should smell gas .if you dont then most likely the pump is bad ,the pump will come on for 2 seconds when the key is on then go off it will not stay on with just the key on only when you crank it will it .so have your fuel pressure checked with a gauge.
Posted on Mar 22, 2009
This could be a number of things but i think that your problem sounds like a vacuum leak or an EGR problem. Try listening for leaks and try un-plugging the EGR solenoid valve one time.
Posted on Apr 17, 2009
SOURCE: fuel delivery
yes i had the same problem like too never found it but it was the fuel pressure regulator
and on that engine its located below the upper intake you have too pull it off too get too it!!!
it takes about two hours too do the job!!!
Posted on Apr 23, 2009
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