rpm fluctuation on 1999 Saab 9-5

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

by in Comstock Park, MI on April 25, 2009
1 answer
ANSWER by on July 21, 2009
Did you find out what was causing this problem? Was the engine speed really jumping up that high?

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