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Old 02-03-2009, 10:55 PM   #1
keepark
1st Gear Newbie
 
Join Date: Dec 2008
Location: Toronto
Posts: 16
Z4 3.0i - Whistling Sound

Hi guys,

I have this whistling noise when 1,000~2,000 rpm.
I hear no whistle when it's idling, but when i gently press on the gas pedal, it makes the whistle and the engine revs right after.
I hear it the most when I'm driving in the parking lot, rpm around 2,000 it makes the sound and when it revs up, it disappears. Only whistles on low rpms.

I've already changed the oil separator, and i don't know what else to do.

Any ideas?
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Old 02-16-2009, 04:41 PM   #2
Lester
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Join Date: Jan 2004
Location: Richmond Hill, Ontario
Posts: 250
Quote:
Originally Posted by keepark View Post
Hi guys,

I have this whistling noise when 1,000~2,000 rpm.
I hear no whistle when it's idling, but when i gently press on the gas pedal, it makes the whistle and the engine revs right after.
I hear it the most when I'm driving in the parking lot, rpm around 2,000 it makes the sound and when it revs up, it disappears. Only whistles on low rpms.

I've already changed the oil separator, and i don't know what else to do.

Any ideas?
Cracked intake hose
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Old 02-18-2009, 08:10 PM   #3
keepark
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Join Date: Dec 2008
Location: Toronto
Posts: 16
Not the Cracked intake hose
Not the Intake Adjuster Unit
Not the Idle control valve or hose around it

Seems like the alternator pulley...or something i don't know.
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