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Old 04-01-2012, 11:01 AM   #1
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Default Strange sound

After my H/C install I am noticing a strange whistling noice that sounds like its at the rear of the car.

It is very faint and it doesnt always happen. It almost sounds like a tiny little turbocharger spooling up or something.

What is this? Fuel pump? Im not sure.
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Old 04-01-2012, 02:32 PM   #2
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Did you tweak the rear end maybe with the extra power.
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Old 04-01-2012, 02:48 PM   #3
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Originally Posted by Gunslinger09 View Post
Did you tweak the rear end maybe with the extra power.
I heard it right when I left with the car after install. So if the rear was tweaked it was tweaked by them.

Some guys on c5 have said it could be the belt.

I did change belts and tensioner. It is not a big deal. I can barely hear it and its only at 2-3k rpm...just want to make sure it is nothing serious if you know what I mean.
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Old 04-01-2012, 02:52 PM   #4
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im sure you know the difference but maybe humming from your differential?
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Old 04-01-2012, 02:58 PM   #5
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im sure you know the difference but maybe humming from your differential?
Nah man...it does have a little bit of that since I went to poly mounts...but this sound is something new.

thanks for your input though.
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Old 04-01-2012, 03:03 PM   #6
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exhaust or vacuum leak?
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Old 04-02-2012, 11:47 AM   #7
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Still not sure yet.

I am going to look into it tomorrow. I have to work tonight so today is not a good day.

I will figure this out soon enough.
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Old 01-26-2013, 07:41 AM   #8
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