Revving on start solved. - Saab 9000 Bulletin Board - Saabnet.com
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Revving on start solved.
Posted by BobS (more from BobS) on Sun, 3 Dec 2006 19:33:40
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The engine of our 1997 9000 has always revved excessively when started warm or cold. In the worst cases it would run up to 2000 RPM hit fuel cut a couple times then slowly settle to idle speed. The service record indicated they had replaced the DI twice at the port and once at the dealer trying to solve the problem. After fiddling with it off and on over the years it appeared the temp sensor had something to do with it, even though it indicated the proper temperature and resistance. Replaceing the sensor has stopped the revving. Examination of the sensor indicated it had a heavy white film (mold release?) on the contacts, apparently enough to affect the temperature reading on startup. Hopefully this will fix the no start problem we have had in sub zero weather.
posted by 69.95.232...
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