When just driving off and accelerating,engine RPM goes up on 2005 Buick Rainier

but is not shifting properly

by in Winterville, NC on January 10, 2012
1 answer
ANSWER by on January 10, 2012
Is there a Check Engine Light on? Have the transmission fluid check and or perhaps the transmission serviced but it may be a transmission problem requiring transmission to be overhauled.

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