: 2003 FWD Deville engine dying

08-10-06, 12:35 PM
I have 66,000 on this car, it has been serviced regularly and recently, but I'm still having problems with the car dying when idleing. The dealer has been unable to diagnos the problem. Does anyone out there have experience with this and/or advise?

08-10-06, 12:56 PM
Did u clean the throttle body? N* engines are prone to carbon buildup and too much carbon will block off the little air clearance needed in the TB to keep the engine running while at idle.

08-10-06, 02:27 PM
Got codes?

08-11-06, 05:23 PM
Did they check the crank sensor? My 96 devile had me pulling my hair out when it was starting and dying

08-12-06, 07:38 AM
Has you gas milage gone to crap too? I have the same problem right now and my gas mileage just keeps dropping.