Date: Sun, 15 Apr 2007 09:40:41 GMT
From: Paul Halliday <>
Subject: Re: 1995 Saab 900SE Turbo Bypass Valve location??

in article, robertjm at wrote on 14/04/2007 23:37: > Hi all, > > Recently took my 900SE Turbo convertable to be smogged. The numbers > were great, but he failed me due to a couple of hoses being messed up. > > First off he said the breather hose was bad and needed to be replaced. > I went to the local Saab dealer and bought some hoses, but it turned > out the hose he was talking about was the fat one, not the small ones, > so I have another trip to Saab on Monday. The breather hose does have to be a specific type with a proper oil resistant lining. Air/oil mist that comes off the crankcase can attack normal rubber. > Secondly, he said the bypass valve was disconnected. When I asked him > about that he said its just held on by vacuum so may have been knocked > off when I got the car's oil changed. Not sure why he didn't just pop > it on for me, but he didn't. Anyways, I went to do it myself, but > dont' see any hoses that are not connected and hanging loose. Exactly > WHERE is the bypass valve on a 1995 900SE Turbo Convertible located? I'm not exactly sure, but if you follow all the hoses off your throttle body (should be one between 15mm and 25mm), you'll arrive at it in the end. It's black, says Bosch on it and on your car should have two large 25mm ports and one vacuum port. It should fit into the large air pipe that runs between the airbox and the turbocharger. With regard to your vacuum, hose is cheap enough to replace all the hoses under the bonnet. Take each one off in turn, cut the correct length from your new reel and fit it. Don't think about pulling them all off first, or you'll forget how they go back together. Paul 1989 900 Turbo S

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