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Thread: multipul misfire 3.2 gsi p0300,p0301,p0303,p0305.

  1. #1
    Regular Member rayvo-gsi's Avatar
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    Default multipul misfire 3.2 gsi p0300,p0301,p0303,p0305.

    Hi guys hoping you can help me on this one.My vec has an annoying misfire that can only be felt on tickover it seems to run fine once going.Ive changed all plugs and new coilpack on rear bank it had a timing belt done 4k ago my question is could the timing on 1 cam be slightly out as its only the rear bank thats misfiring.Thanks in advance fellas

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    Regular Member shaunft's Avatar
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    does it say which bank its misfireing on

  3. #3
    Regular Member rayvo-gsi's Avatar
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    Its missing on all 3 plugs on the back bank 1,3,5 but only on tickover.

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    Regular Member shaunft's Avatar
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    could possable have slipped a tooth on the timing would get it checked but mine misfires sometimes due to low fuel and brings on or flashes eml

  5. #5
    Regular Member DSmiddy's Avatar
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    Vehicle : Signum

    Trim : Elite

    Engine : 2.8 V6T

    Year : 2005

    Mileage : 50000

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    Quote Originally Posted by rayvo-gsi View Post
    Hi guys hoping you can help me on this one.My vec has an annoying misfire that can only be felt on tickover it seems to run fine once going.Ive changed all plugs and new coilpack on rear bank it had a timing belt done 4k ago my question is could the timing on 1 cam be slightly out as its only the rear bank thats misfiring.Thanks in advance fellas
    I would get it checked mate, I had the same problem not longer after my timing belt was done, I did the same as you, replaced the plugs and the rear coil pack, made no difference. it turned out to the be the timing belt was slightly out.

  6. #6
    Regular Member rayvo-gsi's Avatar
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    Thanks for all your help guys it turned out both rear cams had slipped a tooth sorted it and it runs perfect now but i think i might have tightend the tensioner too much due to a whining noise.

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    Thin k I better give mine a good check over

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