Re: Bad misfire - no codes - Saab 9-5 Bulletin Board - Saabnet.com
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Re: Bad misfire - no codes
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Posted by DaveC [Email] (more from DaveC) on Wed, 26 May 2010 09:19:56 Share Post by Email
In Reply to: Re: Bad misfire - no codes, John Myers, Wed, 26 May 2010 08:58:10
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well...as best as I can describe...

By misfire, I mean it feels like one or more of the cylinders is not getting sufficient spark or fuel to "fire" resulting in erratic, sometimes jerky engine performance, to the point that the rpms would drop and the car would slow down some and even feel as though it was going to stop running.

The car ran fine for 10 15 minutes and then it started to "misfire". At a stoplight I could see the rpm's drop and the engine would almost quit. On acceleration and during periods where the speed was maintained, the engine would sporadically "misfire", i.e. the jerky hestitancy of the engine.

Not sure that answers it adequately..but any advice appreciated.

Thanks,
Dave

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