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Date: Mon, 17 Jan 2005 08:49:13 GMT
From: Johannes H Andersen <johsnospamfitter.com>
Subject: Re: 94 9000 engine racing problem


dyerpartsnospamail.com wrote: > > For the past 12 months I have been having a problem with my engine > racing. Here are the specific symptoms: > > * Approximately every other week, after running for 10+ minutes, the > engine will suddenly start racing. > * It will rise from 1k rpm to 3k. Often it will then surge from 1k to > 3k every second or two. > * If I accelerate, sometimes the engine RPM will rise but then not fall > for a while when I take my foot off the gas. If I turn the car off for > a minute or so and then restart it, the problem will disappear. > > I took it to two local SAAB dealers. One replaced the IAC-that > didn't fix it. The other suggested a new ECU / computer for the > engine-- I picked up a used one but that didn't fix it either. > That same dealer then told me it was a "known and unsolvable > problem" with Saabs and was related to the fact that I was the only > driver of the car and I didn't vary my driving style enough-- this > didn't make any sense to me! "BMWs have the same problem, Sir..." "Do your wife sometimes drive the car?..." > Does anyone have any ideas here? I'm at my wits end! Almost certainly a vacuum leak. It could be a hose with a split end, the split may be hidden from view. Listen for whistling noises in the engine bay.

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