Mechanics

VIBRATION

2001 Pontiac Montana • 6 cylinder FWD Automatic • 126,500 miles

2001 Pontiac Montana - Lots of vibration when stopped at light with elevated revs. Less vibration when move to neutral.
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N. G. Wells
December 17, 2010.




It sounds like it might need the throttle plates cleaned or a real dirty air filter or a bad i.A.C-(idle air control) valve. If this were bad your cheak eng light should come on.



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