Question about 1993 Chevrolet K1500

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1993 chevy k1500 4x4

I have a 5.7 liter 350. it is rebuilt. the engine runs fine until it warms up. once it's warmed up and i rev it up to 1000 rpms it tries to stall out. i've had it checked for vacuum leaks. and i was told they were fixed but i dont know how to check for them.

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  • hillaryejust Feb 04, 2009

    yes, i did the timing myself with a timing light, and i did unplug the computer bypass.

  • hillaryejust Mar 08, 2009

    it has a new fuel pump on it. Along with a new gas tank and sending unit. i didnt think i needed to check the fuel pressure.

  • hillaryejust Mar 19, 2009

    it is throttle body it has two fuel injectors, and no the truck has not been scanned for codes.

  • hillaryejust Mar 30, 2009

    i fixed the problem, it was my egr valve, it was clogged up.

  • iowa500 May 11, 2010

    Did they unplug the computer bypass when timing the engine.

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  • Chevrolet Master
  • 6,674 Answers

Have you by any chance, monitored fuel pressure from start-up to warm-up point where it will not rev? Would not be uncommon for fuel pump to start acting up, about the same time engine gets warmed up.

Posted on Feb 13, 2009

  • Mike Butler
    Mike Butler Mar 08, 2009

    Is this a carbureted version or fuel injected? (Just to confirm.) Has the truck been scanned for codes?

  • Mike Butler
    Mike Butler Mar 31, 2009

    Good work !

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