Strongly recommend replacing the fuel filter or it will void your warranty.
Check fuel pressure before filter if your getting good power.
We need to know if good power is there or if the pump is putting out good pressure. At the rail it may show low, but a plugged or kinked line may be present or a bad filter. Not sure how you determine the filter being clear, but if you didn;'t check pressure before the filter, you don't know. Unless there is something that can tell beyond what I know.
What brand are you using. Hopefully a delphi on this.
That is the only brand I use on GM. Airtex, and carter for example are garbage. In my experience.
Check for the power and good ground or pressure out of the pump would be my next step.
Thursday, July 24th, 2008 AT 7:50 PM