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1999 Saab 9-5 Question: rpm fluctuation

 

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rew1951, 4 Cylinder, Automatic Transmission, Comstock Park, MI, April 25, 2009, 13:56
 Rookie

When stopped at a light,rpm jump up to 11,000 rpm and back down again to 9000rpm causing a jerking motion. When in N its ok and it runs good. Also does this offen in reverse. does not do this all the time but becoming more frequent

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  • Answer #1

    blindsquirrel July 21, 2009, 11:06
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     Journeyman

    Did you find out what was causing this problem? Was the engine speed really jumping up that high?

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