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Whirring noise when revving?????
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Old 02 Oct 2008, 05:56 PM   #1 (permalink)
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Whirring noise when revving?????

For some reason, my dump valve is not working and i'm getting a weird whirring noise when i put my foot on the accelerator. Its not the clutch, beacause iput the car in neutral and revved it, and the noise is still there.

It seems to start up mostly when i floor it, could it be the turbo.

Need to get this sorted, so any help would be greatly appreciated.

Scotty.
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Old 02 Oct 2008, 11:03 PM   #2 (permalink)
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Re: Whirring noise when revving?????

[QUOTE=SilverStreak;286123]For some reason, my dump valve is not working and i'm getting a weird whirring noise when i put my foot on the accelerator. Its not the clutch, beacause iput the car in neutral and revved it, and the noise is still there.

It seems to start up mostly when i floor it, could it be the turbo.

Need to get this sorted, so any help would be greatly appreciated.

Scotty.[/QUOTE


You think it sounds like the turbo spooling up or more of a whinning noise like a bearing................. for example water pump or tension pulley or idler pullies????????

Last edited by stiimpreza1984; 02 Oct 2008 at 11:33 PM.
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Old 03 Oct 2008, 05:50 AM   #3 (permalink)
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Re: Whirring noise when revving?????

[quote=stiimpreza1984;286186]
Quote:
Originally Posted by SilverStreak View Post
For some reason, my dump valve is not working and i'm getting a weird whirring noise when i put my foot on the accelerator. Its not the clutch, beacause iput the car in neutral and revved it, and the noise is still there.

It seems to start up mostly when i floor it, could it be the turbo.

Need to get this sorted, so any help would be greatly appreciated.

Scotty.[/QUOTE


You think it sounds like the turbo spooling up or more of a whinning noise like a bearing................. for example water pump or tension pulley or idler pullies????????
Seems weird as i put some WD40 on the dump valve, which i got told to do, and now the dump valve is working better than when i first bought it and the weird sound has gone.
Do you think it could of been because the piston in the dump valve was not moving properly??

Scotty.
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Old 03 Oct 2008, 07:30 AM   #4 (permalink)
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Re: Whirring noise when revving?????

Hi Scotty.

Sounds like it was dump valve related "Piston stuck" The WD40 must have lubricated the parts in the dump valve.
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Old 03 Oct 2008, 08:44 PM   #5 (permalink)
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Re: Whirring noise when revving?????

Do you think it could of been because the piston in the dump valve was not moving properly??[/COLOR]

Scotty.[/QUOTE]



Great all sorted so ya it must have being sticking a bit so wd40 great
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