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Should my plenum look like this?

Discussion in 'VY Holden Commodore (2002 - 2004)' started by looks450, May 5, 2012.

  1. May 5, 2012 #1
    looks450

    looks450 New Member

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    I am chasing a rough idle and took the top off the plenum and it was fairly stained. I am just wondering if it should be like this.

    I should at this point I add that the car has an in-line valve lub system attached. ImageUploadedByTapatalk1336220472.428858.jpg
     
    looks450, May 5, 2012
    #1
  2. May 5, 2012 #2
    wraith

    wraith Hand over the dog bikkies

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    Yep normal for the ecotec. Could give it a clean but it will only be dirty in a couple months any way. Clean your idle air controller and go from there.
     
    wraith, May 5, 2012
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  3. May 5, 2012 #3
    Dr HaxZaw

    Dr HaxZaw New Member

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    if your chasing a rough idle definitely clean the idle air control valve... cleaning the plenum will make it run smoother as well
     
    Dr HaxZaw, May 5, 2012
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  4. May 6, 2012 #4
    VYMAD

    VYMAD SILVERFOX

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    That plenum chamber looks normal. In fact even cleaner than mine when I had it open to clean.
     
    VYMAD, May 6, 2012
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  5. May 6, 2012 #5
    HERONVY

    HERONVY New Member

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    do what i did yesterday to mine, pull it off and clean it out with kero, wire brush and wire wheel on an air drill until it shows the bare aluminium again

    clean the IAC as mentioned

    then fit a catch can to stop most of the oil from the crankcase gas getting in there via the t/b

    take a look at your t/b aswell , more than likely itll have sludge on the butterfly too.
    Clean that off with kero and toothbrush + wire brush

    Sent from my GT-S5570 using Tapatalk 2
     
    HERONVY, May 6, 2012
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