Possible Transmission Issue

GMC
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NICKLYAINE
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I have a 2002 Pontiac Grand Prix SE with 85,000 miles. I've noticed my car vibrates slightly when shifting. I thought there may be a problem with the transmission so I had it checked out. The repair shop I took it to told me they found no structural damage with the transmission, so I asked them to have the transmission fluid replaced. The car still vibrates slightly afterwards, otherwise the car runs fine. Could another problem be causing this or should I get a second opinion on the transmission?
May 3, 2006 at 3:52 PM
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LOSONE
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is the feeling a shudder or a chatter/ You may have an engine that is misfiring which makes it sould like the tranny is giving trouble.
May 3, 2006 at 5:25 PM
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NICKLYAINE
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[quote:aef80ef4e7="losone"]is the feeling a shudder or a chatter/ You may have an engine that is misfiring which makes it sould like the tranny is giving trouble.[/quote:aef80ef4e7]

There is a slight shudder, but it does not occur with every shift. Anyone who doesn't drive the car regularly probably would not notice it at all.
May 4, 2006 at 1:52 PM
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LOSONE
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It may be a good idea to service the transmission by someone experienced with that car. Have him check for metal in the pan or burned fluid. perhaps a service and a good additive will cure the problem. They need to be serviced every 60K miles.
May 4, 2006 at 2:18 PM