2001 Pontiac Montana - Lots of vibration when stopped at light with elevated revs. Less vibration when move to neutral.
Dec 17, 2010 at 8:07 PM
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DAVE'S BIG BACKYARD!
EXPERT
262 POSTS
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.