Date: Tue, 15 Mar 2005 17:57:06 -0500 From: Tom Reingold <trn07040-nospamnospamast.net> Subject: Re: Overboost problem
eric.perduenospaml.com wrote: > I have been living with an overboost problem on my '92 9000 for a while > now due to financial constraints. The turbo will boost to where it > starts touching red on the gauge which will in turn cut out the fuel > pump to save the motor...the overall effect is kind of a "bucking" > phenomenon. Very annoying, especially on the freeway, and potentially > dangerous as power may not be there when needed. A good friend and car > wiz (not much experience with Saab, but very well versed in most > European makes - he works as a lead tech for a VW dealer) suggested > that I replace the APC valve. His suggestion fit in with the reading I > have done, so I ordered a new one and slapped it in today. Although the > problem is alleviated quite a bit, it ain't gone. WHere would be the > next place to look? I want my HP back!!! > I had this problem in my 1995 9000 CS (LPT). It turned out to be the wastegate was sticking open. It stuck because water had gotten into it. My mechanic lubricated it, which alleviated the problem for a week or two. Then it came back. He said at that point, the only thing was to replace the turbo, which he did. Here's hoping that's NOT your problem! -- Tom Reingold Noo Joizy
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