rough idle on 1998 Chevrolet Tahoe

Example: Sitting at stop lite.Idle starts to run rough in drive position,but when gear is moved to either neutral or park, runs smooth.

by in Reston, VA on June 21, 2011
Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
1 answer 2 comments
ANSWER by , June 21, 2011
sounds like a plug or coil failure. you need a shop to verify and give you a bid. Roy
COMMENT by , June 21, 2011
What do you mean by a coil failure?
COMMENT by , June 21, 2011
ignition coil. there is one for each cylinder and it could be failing by not firing the spark plug. Roy