Question about 1999 Chevrolet Blazer

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1999 chevy blazer fuel problem

Got a 1999 chevy blazer. 4.3 v6 vortex. Once its started it will start fine. But after sitting a few hours it won't start. Its not getting fuel. If I pour gas into throutle body it will start and drive fine . When running it drives fine not slugish or anything. I put a fuel pressure test on valve on fuel rail were it goes to test it. It should read 60 to 66psi. But it read 56psi . And continoued to drop pressure very slowly once done . Since it is low does that mean fuel pump is bad or fuel pressure regolater.How do i test fuel pressure regulator.Not sure fuel pump or fuel pressure regulator. Already checked fuel lines fuel filter all good.

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  • Anonymous Mar 12, 2014

    where is the fuel pressure regulator on my 1989 chevy blazer

  • Anonymous Mar 12, 2014

    1989 fuel pressure regulator

  • Anonymous Mar 15, 2014

    fuel pressure regulator location

  • Anonymous Mar 19, 2014

    94 caprice

  • Anonymous Mar 19, 2014

    94caprice

  • Anonymous Mar 19, 2014

    94caprice

  • Anonymous Mar 21, 2014

    where is it

  • Anonymous Mar 30, 2014

    Losing power when I go to take off rest of time drives fine only happens when accelerating from a stop 2002 Chevy trailblazer its not fuel had it pressure tested and changed filter

  • Anonymous Mar 30, 2014

    Losing power when I go to take off rest of time drives fine only happens when accelerating from a stop 2002 Chevy trailblazer its not fuel had it pressure tested and changed filter

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  • 99 Answers

Probably not fuel filter . probably going to have to remove the upper intake and replace the fuel injector spider(fuel inj assebly) if it is droping fuel pressure it is leaking into the upper manifold

Posted on Nov 30, 2008

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Posted on Jan 02, 2017

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