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Thread: Funny Noise query

  
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    Pinty's Avatar
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    Funny Noise query

    I'm after some advice if possible, my 2006 Mk5 Astra has started making an 'electric whirring' kind of noise from the engine and I have no idea why or what is making it.
    The noise increase's in pitch & volume as the revs increase, both on the move and when stationary just revving the engine.
    I've searched t'internet a little, and there have been suggestions of crankshaft pulleys needing replacing to knackered alternators.
    I'm not mechanically minded, but I'd like to know what it could be before I get it looked at so I know if I'm being ripped off or not.
    Any help or advice would be greatly appreciated.
    Cheers
    Pinty

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    i would start with auxiliary belt and tensioner first
    x18xe1 152bhp-136lbft

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    Update

    Update if anyone is interested...

    Managed to get to the bottom of the noise, apparently, it was the bearings in the alternator. Replaced under warrenty by the dealer we bought the car from; all £240 odd quid's worth of it!! They had to replace it with genuine Vauxhall item as no pattern parts are avaliable!?
    I'm happy that its fixed anyway

    Happy Noo Year

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    usually to do with a belt some where or other haha, glad its fixed mate! happy new year

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