Date: 14 Nov 2002 17:16:15 -0800 From: firengn123nopsamo.com (Dave) Subject: Re: Growling noise in the L.F. fender.
> > Let us know what they say. Ok,,, I've got the poop. It is a "vacuum bypass valve". It sits on the firewall. It is on a metal plate 3" wide and 2"tall. It is black, and has a nipple on the right side for a hose, and it has electrical wites hanging out the bottom that go to a plug on the left side. When this thing screws up, it makes the charcoal cannister run almost constantly. Mine was about $80.00 but I'm sure it's cheaper at someplace like saabparts.com It a piece of cake to replace, I just didn't know what it was. Anyone with a constant buzzing needs to look into this. Probably not a big deal, but it annoyed my wife, and she annoyed me.