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Author Topic: Whiney high pitched noise at high revs  (Read 2108 times)

Offline djalexr

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Whiney high pitched noise at high revs
« on: 26 May 2011, 18:28 »
Hi everyone,

For as long as I can remember by Golf GTI MK3 1996 AGG has made this quite loud high pitched whiney noise when the revs get high.

You can hear it everytime you are about to change gear

Its a bit like the noise that cars sometimes make when reversing.

At first I thought it was an air leak... opened up the bonnet though and definately seems to be coming from the thing i've circled in this picture. Sometimes also makes wierd noises when the revs are on their way down too....
 


Anybody have any ideas?  :smiley:
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Offline dashey

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Re: Whiney high pitched noise at high revs
« Reply #1 on: 26 May 2011, 18:33 »
thats your alternator most probs the bearing gone inside it
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Offline Khare

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Re: Whiney high pitched noise at high revs
« Reply #2 on: 26 May 2011, 18:33 »
It's probably the alternator belt. It's common for it to squeak with age, along with the power steering belt. It only costs a few pounds and fitting it is an easy 10-30 minute job depending on your skill.

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Offline dansmk3

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Re: Whiney high pitched noise at high revs
« Reply #3 on: 26 May 2011, 18:35 »
thats your alternator mate!!! cheap to replace and the belt is too! pick em both up from halfords, maybe even eurocarparts or gsf! as i dont really like halfords lol
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Offline Khare

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Re: Whiney high pitched noise at high revs
« Reply #4 on: 26 May 2011, 18:45 »
Don't go dishing out on a new alternator just yet. It's not too common for the bearings to fail, so it'll be the belt which is a few pounds only. No point spending £70+ on a new alternator only for it to be a £5 belt...
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Offline dashey

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Re: Whiney high pitched noise at high revs
« Reply #5 on: 26 May 2011, 18:50 »
Quote from: Khare on 26 May 2011, 18:45
Don't go dishing out on a new alternator just yet. It's not too common for the bearings to fail, so it'll be the belt which is a few pounds only. No point spending £70+ on a new alternator only for it to be a £5 belt...
^^^ makes sense
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Offline dansmk3

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Re: Whiney high pitched noise at high revs
« Reply #6 on: 26 May 2011, 18:56 »
yh apologies! start with the cheap fixes first!!! recently have been used to shelling out money to fix mine so could say my mind is used to replacing the whole lot!  :grin: :grin: :grin:
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Offline stainesy

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Re: Whiney high pitched noise at high revs
« Reply #7 on: 26 May 2011, 19:41 »
My gti 8v whines all the time from that area. Mine is a constant whine that increases with the revs. Very noticable when driving.
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Offline Wayne

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Re: Whiney high pitched noise at high revs
« Reply #8 on: 26 May 2011, 20:06 »
If it is whining it could be the belt is too tight, replace the belt as a 1st step.
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Offline stainesy

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Re: Whiney high pitched noise at high revs
« Reply #9 on: 26 May 2011, 20:10 »
i need a new alternator as there is a crack all the way down the right hand side bracket for it wich must be pulling the belt tighter.
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