[s-cars] Funny Noise

Tom Green trgreen at comcast.net
Wed Apr 28 19:05:23 EDT 2004

Forrest hears noises:

When I first drive my car in the morning I hear an intermittent howling 
noise for a couple seconds, then it fades away. It sounds just like 
when you blow in to a beer bottle. Seems when the car gets warmed up 
the problem doesn't exist.
Greg J in Michigan

I too have randomly experienced this sound in my cold car on cold days, 
it sounds like a distant fog horn from a freight ship, and yes it's 
very intermittent, does not happen everyday, and only before car has 
fully warmed up.

this question was on audiworld, thought it would be more practical here

You probably have more answers to this than you need.   There probably 
aren't many listers that haven't had the "goose honk" symptoms of a bad 
diaphragm in the OEM bypass valve.   The archives are full of fixes--- 
710N, Forge, Dahlback, Mitsu EVO, etc, etc., or just a new OEM valve.

Tom '95 S6

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