Error code P0305
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Cadillac Escalade, EXT and ESV Forum - 1999 - 2006 Discussion, Error code P0305 in Cadillac Escalade Forums; I have code for misfire on cylinder 5. I have changed the spark plugs, reset the computer, but it still ...
  1. #1
    topmillwright is offline Cadillac Owners Member
    Automobile(s): escalade
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    Error code P0305

    I have code for misfire on cylinder 5. I have changed the spark plugs, reset the computer, but it still throws the code. Could it be the coil or fuel injector? Any help would be greatly appreciated!

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  3. #2
    jnrsesv is offline Cadillac Owners Enthusiast
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    Re: Error code P0305

    Switch the coil with another cylinder. If the misfire follows then you know its the coil.

  4. #3
    topmillwright is offline Cadillac Owners Member
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    I only have one coil

    ----------

    I have a 1999 escalade

  5. #4
    wesyder's Avatar
    wesyder is offline Cadillac Owners Enthusiast
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    Quote Originally Posted by topmillwright
    I only have one coil ---------- I have a 1999 escalade
    could be an injector the 99 has that problematic spider fuel injection under the intake manifold bad thing is the whole thing has to be replaced

  6. #5
    topmillwright is offline Cadillac Owners Member
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    Problem solved! Replaced the intake gasket.

  7. #6
    wesyder's Avatar
    wesyder is offline Cadillac Owners Enthusiast
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    Sweet

  8. #7
    the cadillac man's Avatar
    the cadillac man is offline Cadillac Owners Master
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    Great news to hear

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