Fuel system

Asked by David May 20, 2017 at 06:24 PM about the 2006 Pontiac Grand Prix Base

Question type: Maintenance & Repair

I was wanting to know what
the pressure should be in the
Fuel Rail? I don't think the fuel
injectors are atomizing the
gas do to lack of psi... After I
put the key in th ON posistion,  
i went back under the hood of
the car and pushed on the
Shrader valve....The gas
came out like an old water
fountain... Any thoughts on
what to do?

1 Answer
42,870

Hornet_2497 answered 6 years ago

Fuel pressure for this engine should be 56-62 psi. If you have a lot less you should check the fuel filter, fuel regulator and fuel pump for signs of failure. I hope this helps.

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