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minor rough idle!

Discussion in 'VR - VS Holden Commodore (1993 - 1997)' started by r_i_d_a_h, Feb 6, 2007.

  1. r_i_d_a_h

    r_i_d_a_h New Member

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    guys i need to know what myt be causing my car to have a rough idle

    im aware off the spark plugs/leads alternator, pritty much all the cars electrics

    not big on engines..but i have noticed that when the car idles the harmonic balancer seems to jiggle around when it spins..like the centre bolt spins roughly ALTHOUGH when i rev it up a bit it spins fine and smooth...lol i dont know if its normal or what?

    maybe the pod filter may be causing it to rough idle?? ive built a enclosure for it, so its boxed off from the engine and i have 3 intakes runnin in to the enclosure...could it be struggling to suck air when in idle?? not sure

    but concerned about harmonic balancer
     
  2. Not_An_Abba_Fan

    Not_An_Abba_Fan Exhaust Guru

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    Does the harmonic balancer move when the engine is off? Sometimes the rubber lets go and causes it to wobble.
     
  3. hako

    hako Donating Member

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    Throw a tin or two of Nulon or Techron injector cleaner into the tank ....may make a difference and I'd double check that harmonic balancer - if it fails you are basically stranded.
     
  4. r_i_d_a_h

    r_i_d_a_h New Member

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    my cousin has a tin of fuel injector cleaner but no instructions

    ..so should i just pour the whole tin into the petrol tank??..and itll go to work when i run the car?
     
  5. hako

    hako Donating Member

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    If it ain't got no instructions I'd question that it is actually injector cleaner....but if you are convinced it is injector cleaner then usually its 1/2 a tin to a tank.
    It can work in some cases and is not guaranteed...but it 'can' work. Best of all its cheaper than a proper 'injector out' clean ($12 versus $250).
    But I'd still look closely at that harmonic balancer.:thumbsup:
     
  6. r_i_d_a_h

    r_i_d_a_h New Member

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    will do

    thank champ!
     

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