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Date: Thu, 4 Jan 2007 18:35:03 +0100
From: "Richard" <rootnospamlhost>
Subject: Re: '99 9-5 auto roaring noise on acceleration


"leigh" <duff.mcninjanospaml.com> schreef in bericht news:1167879180.997723.103600nospam00cwy.googlegroups.com... > actually, deeper, like a gutteral mooing or a zombie's groan (sigh). > these are the best ways to describe it. > > forgot to add that i had the wheel bearings checked to no avail. > > Eeyore wrote: >> leigh wrote: >> >> > Hi everyone, my automatic 1999 9-5 2.3 lpt makes a roaring sound b/w 30 >> > and 40 mph. it didn't make that sound before. the noise doesn't seem >> > to be coming from any side of the car in particular, and the muffler >> > was replaced a few months ago. it really sounds more like a "wooooo" Did this sounds start around the same time the muffler was changed? Then that would be the first thing to consider, and check. Maybe the muffler touches a body part somewhere and resonates at a certain speed? I remember one of my old cars... they replaced the exhaust pipe, and all was well, UNTIL you started driving and accelerating. Then the movement of the engine made the pipe just touch the chassis, and the sound was what you describe. Its not locatable, because the whole chassis is vibrating making the sound come from "everywhere" Good luck! Richard.

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