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Thread: Replaced chains but engine still noisy

  1. #1
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    confused Replaced chains but engine still noisy

    Hello guys,

    My car is Vectra 2.2 Elite Direct Auto, year 2006 with 50K miles.

    I was having a slight rattle on cold start, the engine seemed a bit noisy on idle (seems fine when running) and rough gear changes, so after reading lots about it, everything pointed towards timing chain. So after lots of courage and not able to get hold of Benny, I eventually decided to get it done from Vauxhall. Just 2 days back, I got both the timing chain and balance shaft chain kits replaced by Vauxhall along with engine flush, new oil and filter.

    But the problem now is that even after getting all this work done, the car still pretty much feels the same. Yes, the rattle on cold start seems to have gone and the car runs slightly smoother. But the engine is still noisy on idle (you can hear it sitting inside when stopped anywhere in traffic) and gear changes are still rough.

    Having already spend a big amount on chains, not sure what else to do. So, need your help guys...

    Thanks in advance.

  2. #2
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    Anyone??

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    Regular Member C-Owner's Avatar
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    Did you tell Vauxhall to replace those parts or did they diagnose/advise/replace them.

    I would be back there and ask them to test drive the car and advise you of what's wrong even if you did ask them to replace the timing chain assembly.

    Unfortunately without experience of noises, reading about them and diagnosing on the internet can be an expensive exercise, especially if its the DMF on the way out
    as well as the timing chain, you probably had more than one fault.
    Last edited by C-Owner; 22nd November 2012 at 20:38.

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    Well you guessed it... it was me who asked them to replace both the chains as they seem to be the obvious symptoms of the problem! I am hoping that although this hasn't fully solve the problem but I still did the right thing as the chain was definitely rattling on cold startup and its good to be done at this mileage (50K) as I intend to keep the car longer.

    Yes I am thinking of going back tomorrow to ask them to have a look if only they will bother...

    Is there anything else commonly wrong with these 2.2 directs which can cause extra idle noise and slight vibration? Also rough gear changes when going light are causing me headache - seem to be fine if I press hard.

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    Engine : Z18XER


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    DMF will give you them problems(rattle and vibration)

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    Sorry but what is a DMF? Where is it located and how to check if that is the cause?

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    Regular Member Caveman_nige's Avatar
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    Vehicle : Vectra and a Signum

    Trim : top of the line in both

    Engine : Z18XE,Z19DTH,Z20NET

    Year : 2006

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    did you replace the timing chain tensioner as well and did you use the z20net tensioner instead as is recommended..?

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    Yes the complete timing chain and balance shaft chain kits have been replaced by Vauxhall. It was the new part numbers with new tensioner - I did double checked the part numbers at the time of ordering.

  9. #9
    Regular Member Caveman_nige's Avatar
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    Vehicle : Vectra and a Signum

    Trim : top of the line in both

    Engine : Z18XE,Z19DTH,Z20NET

    Year : 2006

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    and the waterpump?

  10. #10
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    Not the waterpump as didn't saw that recommended anywhere alongwith these chain replacement

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