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Author Topic: turbo whistle  (Read 1806 times)

Offline craig g

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turbo whistle
« on: 14 April 2006, 10:56 »
ive had my gti a few weeks but only just noticed the whistle when i had the window down is that right.
it is a progressive whistle !!
also at what revs does the turbo kick in
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craig gTI

Offline Dizzie

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Re: turbo whistle
« Reply #1 on: 14 April 2006, 11:34 »
fit a boost gauge and you'll see the boost
otherwise around 2000rpm
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Mk4 Golf 150PD

Offline Flipmode

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Re: turbo whistle
« Reply #2 on: 14 April 2006, 14:53 »
The whistle is normal mate, its the sound made by your dump valve and not really audible inside your cabin, just when u have your window down. It should be a clean crisp noise without any fluttering or jitters, otherwise you may be in need of a new valve, the factory Bosch? ones are made with a weak membrane so they don't last too long.
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Offline Ivor Mk4 Turbo

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Re: turbo whistle
« Reply #3 on: 14 April 2006, 18:06 »
Quote from: Flipmode on 14 April 2006, 14:53
The whistle is normal mate, its the sound made by your dump valve and not really audible inside your cabin, just when u have your window down. It should be a clean crisp noise without any fluttering or jitters, otherwise you may be in need of a new valve, the factory Bosch? ones are made with a weak membrane so they don't last too long.

No, the diverter valve makes its' noise when you lift off the gas!!!

The whistleing noise is normal, Craig, & the turbo kicks in about 2.5k.
« Last Edit: 14 April 2006, 19:35 by Ivor Mk4 Turbo »
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Offline Flipmode

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Re: turbo whistle
« Reply #4 on: 14 April 2006, 18:21 »
oops! still learning  :embarassed:
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Offline JonnoGti

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Re: turbo whistle
« Reply #5 on: 17 April 2006, 11:56 »
Perfectly normal the whistle is! Like someone said you only hear it when the windows are down. I love the whistle myself!  :cool:
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