Date: Tue, 19 Oct 1999 12:54:44 -0400 From: "Eric R. Sterbenz" <ericnopsamth.com> Subject: Re: Mystery stalling
Rick, Check your throttle dashpot. It is a little vacuum motor on the end of the throttle pivot. It is supposed to slow down the abrupt closure of the throttle in precisely the situations you observe. My '86 had one and sometimes the vacuum diaphram can go bad. I can also be misadjusted. A good test is to rev the engine to about 3K or so and then quickly let off the throttle. If the dashpot is working correctly the RPM's should immediately fall to about 1500 or so and then slowly return to idle. If not the dashpot is bad or misadjusted. Rick and Lorie Mieras wrote: > My 1987 Saab 9000 Turbo will stall, when the engine is hot, and I > accellerate(get into the boost)and then suddenly let up on the gas(such > as deciding to run a yellow light and then thinking better of it). The > RPM will drop to almost zero, the oil light comes on, sometimes the RPM > will flare back up to 1500 or so(with the oil light still on!!!) and > then silence. Every time this happens the beast is hard to start again, > 10 seconds of cranking or so is about normal.....anyone got any ideas? > It's been doing this for years......any feedback, other than "sell the > car", will be greatly appreciated. Hope this helps, -- E.R. Sterbenz ericnopsamth.com
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