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Thread: Exhaust or Cam-Chain?

  1. #1
    Regular Member n_hudson's Avatar
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    confused Exhaust or Cam-Chain?

    My car's started to "Rattle" When I pull away and when I'm driving slow in 2nd, maybe 15mph and below... and sometimes when in 3rd doing 20mph or abouts... (All at or around 1500rpm and above) The car was serviced and MOT'd by VX in May, filters, oil etc all changed... So I've done what I can to keep the Cam-Chain oiled up.
    I'm sure my girlfriend had this sort of problem with her car, It turned out to be a loose or broken Exhaust mounting underneath. The Exhaust does wobble a bit at the rear but I havent had the chance to look at the whole underneath yet...

    Is there anyway I can "self" inspect the Cam-Chain and Exhaust? What should I look for?

    Cheers

  2. #2
    Regular Member rushy's Avatar
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    Vehicle : SRi


    Engine : Z22SE (2.2 Petrol)

    Year : 2004

    Mileage : 137000

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    Chain would rattle at idle, but zorst could rattle as engine is put under load as the engine rocks.

  3. #3
    Regular Member n_hudson's Avatar
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    Theres no rattle when shes idle, just under load... guess that narrows it down...

  4. #4
    Regular Member v6boy's Avatar
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    Vehicle : Vectra

    Trim : GSI

    Engine : 3.2 V6

    Year : 2003

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    Sounds like its this problem
    http://forum.vectra-c.com/showthread.php?t=6242

    rearing its ugly head again. I suffer from this on my GSi, just can't justify parting with the cash to get it cured. Very annoying though; makes a tinny rattling noise when pulling away under load.

  5. #5
    Regular Member john_k_sri's Avatar
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    Vehicle : Vectra

    Trim : SRI NAV XP

    Engine : 1.9 CDTI 150

    Year : 2007

    Mileage : 72K

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    A worn or stretched chain could rattle if you let the engine labour and try and pick up without changing down. But shouldn't happen at 1500 revs or above in any gear with that engine, but may do so if the chain is worn or stretched I suppose. I have a faint recollection of this very thing which disappeared once the cam chain was replaced and my auxiliary belt was finally replaced with the correct pulley and tensioner.

    The exhaust seems the most plausible of the two possibilities you mentioned.

    The twittering from the auxiliary belt only happens at idle and when the engine is cold and is familiar to some of us 2.0T owners.
    Last edited by john_k_sri; 18th August 2008 at 19:46.

  6. #6
    Regular Member ghostrider's Avatar
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    Vehicle : 2.0l CDTi Bi-Turbo Insginia Sports Tourer

    Trim : Vx Line Nav Sri

    Engine : 2.0

    Year : 2014

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    Try this

    http://forum.vectra-c.com/showthread.php?t=53152

    Sounds like a similar problem i had

  7. #7
    Regular Member mark1319's Avatar
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    The noise from the pulley is very annoying and the easiest way is to warm it up and if it goes away it's the pulley and obviously if it remains it will probably be the exhaust.

    The problem with it being the pulley is it's £120, I've just put up with the noise at it is only a noise and when the belt gets changed it disappears for a while.

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