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carlton b
carlton b asked in Cars & TransportationCar MakesChevrolet · 1 decade ago

Hi, I have a 2003 chevy venture 3.4 LT. I changed intake and plenum gaskets,I know have a missfire that i can?

ive changed injecters, plugs wires and it is still missing on # 4

3 Answers

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  • LeAnne
    Lv 7
    1 decade ago
    Favorite Answer

    Check all of the wiring and connectors that you disturbed when you worked on the engine. Check the intake and plenum for any vacuum leak(s). If OK........

    Do a quick compression check on number 4 - if it's OK, check the wiring carefully on the injector and swap the plug with another cylinder and try it again.

  • onebadpooh2001
    Lv 5
    1 decade ago

    Well there isn't much left,but I hope you know the push rods are different lengths for intake and exhaust.If they are swapped,you can bend valves.

    Source(s): GM tech
  • Anthony F
    1 decade ago

    try changing the cap and rotor. if everything else is new then it's probably that

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