Question about 2000 Pontiac Grand Prix

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Transmission is not shifting correctly. Started problem when speedodmeter quit working nad acts like it is not shifting down into lower gears when slowing down or stopping. Problem was intermittent at first but became more frequent until nearly constant now.

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  • gunslinger80 Sep 25, 2008

    yes

  • bmhksmommy Dec 04, 2008

    i have a very simular problem the speedometer stop working all of a sudden at the same time that i was driving my car then out of the blue it was driving then it would not go or shift gears nothing it is a 1993 ford tempo automatic transmission less then 100,000 miles

  • Anonymous Jan 26, 2009

    mine will go but speedometer bounces then engine revs up and won't shift let truck sit for a few days it'll drive fine for awhile then starts back up.
    its a 93 GMC Z71 4wd

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3 Answers

Had the same problem. It started out shifting hard from gear to gear and then started to slip as I went up hill or heavy acceleration. Didn't need a new transmission. The sensor in the transmission had gone bad. Replaced the sensor and 60,000 miles later still going strong. Costs about $750 to $800 to replace the sensor in the transmission.
Good luck!

Posted on Oct 09, 2008

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I never had any problem before yesterday with my transmission when it just stopped with the speedometer

Posted on Dec 04, 2008

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Most likely you would have to replace or rebulid ur transmission pending on the year and how many miles the car has.. is the check engine light on??

Posted on Sep 25, 2008

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