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1998 a4 1.8T: Is it normal to hear a whistle when accelerating?

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Old 03-28-2011 | 12:40 PM
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Default 1998 a4 1.8T: Is it normal to hear a whistle when accelerating?

When accelerating and my RPM is around 2000, I hear whistling; however it goes away if i go above or below 2000. Is that normal?
Old 03-28-2011 | 01:12 PM
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Default Re: 1998 a4 1.8T: Is it normal to hear a whistle when acceleratin

is it a turbo whistle? do you have an intake on your car?
Old 03-28-2011 | 01:16 PM
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Default Re: 1998 a4 1.8T: Is it normal to hear a whistle when acceleratin

I don't know if its a turbo whistle. How do I tell? Also I don't think I have an intake on my car. Sorry I can't be more informative, I am a true novice at this.
Old 03-28-2011 | 01:21 PM
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Default Re: 1998 a4 1.8T: Is it normal to hear a whistle when acceleratin

turbo whistle is like the high pitch sound that a big truck makes when accelerating.
Old 03-28-2011 | 01:30 PM
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Default Re: 1998 a4 1.8T: Is it normal to hear a whistle when acceleratin

Hi,
Exactly what kf said. A couple of things make me thing that it isnt. If it was the turbo making the sound it would only start at about 2500 RPM's and would carry to about 3500. If you had an intake this sound would be amplified followed by a whoosh (from the diverter valve). I dont think it would be a wheel bearing as that would be a consitant sound not relative to RPM's. This is a tough one without actually hearing it. Can you isolate where it is coming from?
Old 03-28-2011 | 01:42 PM
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Default Re: 1998 a4 1.8T: Is it normal to hear a whistle when acceleratin

I did a quick search on youtube for 'turbo whistling' sounds and it doesn't sound like that. It is more like a high pitched whistle.
Old 03-28-2011 | 03:11 PM
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Default Re: 1998 a4 1.8T: Is it normal to hear a whistle when acceleratin

if you park your car but leave it running, open the hood, do you hear it?
Old 03-28-2011 | 03:20 PM
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Default Re: 1998 a4 1.8T: Is it normal to hear a whistle when acceleratin

I can hear it only if i rev up the engine. ~2000 rpm
Old 03-28-2011 | 03:20 PM
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Default Re: 1998 a4 1.8T: Is it normal to hear a whistle when acceleratin

i have a whistle from the mirror on the drivers door. only happens from 40km/h to about 60km/h.
Old 03-28-2011 | 03:28 PM
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Default Re: 1998 a4 1.8T: Is it normal to hear a whistle when acceleratin

It is definitely coming from around the engine.


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