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Thread: What sort of noises would a faulty turbo make?

  
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    Gary_D's Avatar
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    What sort of noises would a faulty turbo make?

    Just that when my turbo boost comes in just after 2k revs in 2nd and 3rd gear only i get like a drive bearing noise that increase with engine speed and as soon as i release the throttle it goes away.
    no smoke,no oil loss,no power loss. had new front hub wheel bearings replaced last year.
    Noise comes more from the passenger side of the car.
    Car well looked after with original turbo with 63k on the clock.
    any suggestions would be welcome as its making me go insane not knowing what it is.
    Took it to VX and took the mechanic in it. he seem to think it was either the wheel bearing or the impaler on the turbo itself but would not give much away as he wanted me to book it in for £70 for an hours labour ouch.
    oh and sometimes the noise drowns out the spool noise on the turbo.
    i know its a stab in the dark but its worth a try.
    thanks

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    Gary_D's Avatar
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    sorry car is Astra coupe turbo with z20let

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