Date: Sat, 14 Jun 2003 22:58:49 -0400
From: KeithG <noonenopsamspring.com>
Subject: Re: Two dismantling questions


I use a long 1/4" drive extension and a ratchet to get at those bolts. It sounds like you may have the check valve on the vacuum reservoir ruptured. This is the white plastic thing in the RHS fender. Try disconnecting the unit and plugging the hose. Your ventilation controls will not work, but the hissing should go away. If so, just get an inline checkvalve for this hose. Another source of vacuum leak could be the pressure transducer. It is also under the dash. If after the first test, you still get hissing under boost, try plugging the vacuum line that goes to the boost gage and see if it goes away. My bets are on the checkvalve on the reservoir. KeithG MeatballTurbo wrote: > In article <3EEA76D4.1080602nopsamspring.com>, noonenopsamspring.com > spouted forth into alt.autos.saab... > >>there is a description on saabnet.com and townsendimports.com on how to >>remove the knee bolster. Good luck! >> > > > > I found the two two 10mm bolts that hold it in place, in the front inner > wings below the windscreen. Typically I don't have a socket extension > long enough to be able to remove them. > > In the end, after removing the centre console and not being able to drop > the dash, I had a go again from through the speaker grille hole. > > Managed to swap hoses blind (look see where I was, reach hand in and > unplug the section of hose, cut the new piece, look where I need to go > and then reconect the hose). > > Now it is done, it is no better. The hiss isn't just present at boost > (listend to it properly). On low part throttle it hisses slightly, on > higher throttle it is gine again, and then as we hit boost it returns > loud enough to hear over the radio. > > Bloody annoying that I'm only getting peak half yellow on the boost > gauge, and standard 1/4 yellow. > > I so want this car to perform the way it should. > The hiss sounds like it is coming thorough some kind of valve, even > sounding partially like a dump valve.

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