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Old 02-07-2009, 09:57 PM   #5
1st Gear Newbie
Join Date: Dec 2008
Location: Toronto
Posts: 16
Originally Posted by Nick_ll View Post
Very small whistle at those RPM could be related to idle control valve and the vacuum lines around it. It could be making such a noise when the valve is partly closed maybe?
This sounds very interesting. I have noticed a slight but constant movement of the rpm gauge when idling.

Where is this valve/hoses?
If you could identify them from a diagram below, i'd really appreciate it
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