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Discussion Starter · #1 ·
I have a 2001 Chevy Impala, I noticed that around 45 mph that it is not as smooth as it used to be. In fact it bucks a little bit. I think there may be something wrong with my transmission, any idea if there is anything I can do other then replacement.
 
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Discussion Starter · #2 ·
Its possible the bucking you are describing could be misfired spark plugs. When was the last time you had a tuneup? Also check your tranny fluid. If it is turned brown and is not red, you need to change it.
 
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