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Thread: Passed mot, all fine but whats the knock still!

  1. #1
    Regular Member Jow20's Avatar
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    Default Passed mot, all fine but whats the knock still!

    So its not arb links or track rod ends or suspension, so what else can it be!? When the car is on ramp its all solid! But uneven/bumpy roads, its knocking from front end! Its on 35mm apex springs. Cheers

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    Regular Member Handyandy-UK's Avatar
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    Vehicle : BMW 525i

    Trim : SE Touring

    Engine : 3.0

    Year : 2007

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    A common knocking point is supposed to be radiator top mounts... tucked away under the slam panel .... something I need to look at myself (when it's not baltic outside).

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    Vehicle : vectra c

    Trim : ls

    Engine : 1800 non vvt

    Year : 2004

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    droplinks?

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    Regular Member Jow20's Avatar
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    No drop links an rubbers are fine ste, tested at mot. How would you test the radiator top mounts? Anywhere to pull on it etc..?

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    Regular Member XPCobra's Avatar
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    Vehicle : Vauxhall Vectra Hatch

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    Shock absorbers can knock, but appear fine on a ramp.

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    Vehicle : vectra c

    Trim : ls

    Engine : 1800 non vvt

    Year : 2004

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    Quote Originally Posted by Jow20 View Post
    No drop links an rubbers are fine ste, tested at mot. How would you test the radiator top mounts? Anywhere to pull on it etc..?
    http://www.vectra-c.com/forum/showth...unts&p=1990743

    http://www.vectra-c.com/forum/showth...iator%20mounts

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    Regular Member Dan_BlackSRi's Avatar
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    Vehicle : Vectra SRi

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    You can never replicate the forces from the weight of the car while one a ramp, so a joint that is only started to wear won't be detected straight away - so you can't really rule anything out just because its been for an MOT.

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    Regular Member AntSSSS's Avatar
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    Vehicle : Vectra Estate

    Trim : SRI

    Engine : CDTI 150 (Z19 DTH)

    Year : 2008

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    Top mounts - or steering arms.

  9. #9
    Regular Member AntSSSS's Avatar
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    Vehicle : Vectra Estate

    Trim : SRI

    Engine : CDTI 150 (Z19 DTH)

    Year : 2008

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    ....or inner cv joints..

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