Date: Fri, 22 Aug 2003 21:35:53 +0100
From: Grunff <grunffnopsam.com>
Subject: Re: stuck wastegate


Tom Reingold wrote: > I have a 1995 9000CS with 145,000 miles on it. I've been having an > acceleration problem with it. It has the 2.3L LPT engine, rated at 170 hp. > > When I push the accelerator farther down than about halfway, it bucks > violently. My mechanic has diagnosed it as a wastegate that gets stuck > closed. He says the turbo pressure builds up and supplies too much > boost. Then the computer notices it and cuts the fuel supply. I wouldn't > mind except that it causes violent lurching, and it's quite unpleasant. > > He said he squirted in lots of anti-seize and worked it back and forth a > lot. (I have no idea how hard it is to reach.) It was fine for two or > three days, and then the problem came back. I have to drive gently in > order to prevent the problem. If it really is a sticking wastegate then it really is a matter of rebuilding the turbo. $800 or $900 seems a little high to me - a rebuilt turbo shouldn't be more than $250, and fitting it is only 2-3 hours. But it's quite unusual to have a sticking wastegate. Is your mechanic absolutely certain that that is what's hapening? Your symptoms are consistent with a sticking wastegate, but they could also be caused by a whole load of other things. -- Grunff

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