2001 chevy impala transmission question. HELP. thanks?

  • Thread starter Thread starter hntraut
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hntraut

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my trani is not as smooth as it used to be. In fact it bucks a little bit. it does it just before it changes 1st, 2nd and 3rd gear. not all the time and not all gears in that order. it does not do it when I'm going fast. it does it when I'm going slow. it just started doing it all of the sudden. can a bad spark plugs cause this?

I have change/ flush the fuild and filter.
change cpv .
fuel filter.
motor mount.

but the sparks plugs cables are over 5 years old. I have no check engine light on. I have no codes.

what could cause this problem? thanks
 
Doesn't sound too likely like its the spark plugs, but ya might as well change the anyway, they are old, or at least clean them.

You might want to consider looking at your TPS (throttle position sensor) and see if there is anything wrong with it the rheostat in it.
 
i have an 04 impala with 78,000 miles havent had that problem sorry i could not help you
 
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