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Thread: Tapping noise

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    New Member james tierney's Avatar
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    Default Tapping noise

    hi all . i have a 1.9 cdti 150 vectra sri and there is a tapping noise coming from around the vacuum pump or injector 4 area . just wondering if its normal . not had car long so not sure if it has always been there, want to find out before i take in to garage under warranty . Any help would be appreciated cheers

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    Regular Member Dan_BlackSRi's Avatar
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    Vehicle : Vectra SRi

    Trim : XP1

    Engine : 1.9 CDTi 150

    Year : 2007

    Mileage : 66000

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    Water pumps, belt tensioners can cause tapping noises, even a failing alternator can cause the noises too, if you're not sure, best to get it checked out - they don't do it normally though bud.

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    New Member james tierney's Avatar
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    cheers for the reply mate but the noise is at other end of the engine near oil filler cap

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    New Member james tierney's Avatar
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    just found out its only doing it when engine is warm. dropped it off at dealers to check it out and replace rear springs .
    will post results when i find out what it is

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    Regular Member kentish_bloke's Avatar
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    Vehicle : Insignia

    Trim : Elite

    Engine : 1.8 VVT

    Year : 2009

    Mileage : 42800

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    is it a fast, light tapping noise that changes speed with the engine speed? if so, its most likely one of the hydraulic tappets, solutions would be to replace all of them, change the oil after using a flushing additive, or turn the stereo up, but im no expert!

    now someones gonna tell me that the diesel engines have push rods lol

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    New Member james tierney's Avatar
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    well acording to the dealer its a normal noise for a diesel engine , im not convinced going to get a second opinion

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