Ruff idle was wondring if problem could be/ o2 sensor/trottle control / I disconnected the MAF sensor and noticed that it is a little better but still ruff idle . From time to time . Example when i come off the highway and come to a complete stop . She starts to idle ruff but does not shut off . But when I connect to MAF sensor she will cut off . I also notice gas consumtion greater . I checked spark plugs and cables they all seem good no carbon build up . We just had a snow storm . Seems this all happened right after

SOURCE: transmission 1999 lincoln continental

Transmission model is AX4N.The reason that the car/trans only acts up after long drives is the heat.As metal components heat up,tolerances and clearances that were marginal or borderline before with moderate heat,become excessive clearances when really hot.More than likely there are internal transmission components with excessive wear.Many problematic areas inside the AX4N trans is the pump,where the oil pump driveshaft bearing wears out,the seal is torn,and hydraulic pressure falls off,common failure point in these units.The other areas are typical to all automatic transmissions,the clutch packs and bands wear and lose clearance.as well as some of the bushings inside the unit.I just rebuilt recently a trans exactly identical to your car,V8...4.6Ltr Lincoln,and it had minimal damage inside,but enough to throw the check engine light on with a Torque Convertor Clutch trouble code.The TCC was slipping excessively,and the vehicle computer recognized this,and illuminated the CEL.Chances are good that the damage inside your trans will be minimal,but now is the time to consider rebuilding it and restoring all the hydraulic circuits integrity,and resetting all the clutch pack and band clearances with new clutches,steels,and bands.A remanufactured torque convertor should also be installed along with rebuilding the trans.Be careful as to who does the work on the trans should you decide to rebuild it,as some people's definition of a rebuild doesn't quite qualify as anything more than a patch/repair job.A complete rebuild consists of tearing the trans completely down,loading it into a parts cleaner,and thoroughly cleaning it.From this point,the rebuild begins,including a banner overhaul kit,new steels,bands,seals,thrust washers as required,Electronic Pressure Control solenoid,all new bushings,set clutch pack clearances to factory specifications,along with setting unit endplay,and a remanufactured torque convertor.Good luck.

SOURCE: my check advanced trac light

I took my 2005 LS to the dealer for 40k maintenance stuff, oil and fluid changes, tire rotation, etc. The "check" Advance Trac light was an issue with me too. I would have figured that the Advance Trac system simply needed "checking" along with regular maintence because it was "time". However, this was a hold-over problem from the last maintenance I had had - the light had been coming on even after taking it to the dealer previously. I don't think the technician caught it the first time. This next time, I insisted that they look at it. It seems to have been a re-calibration was needed. Now it is fine again...

SOURCE: 1997 cavalier Ruff Idle and ruff accelration.

Hi
The MAF sensor is between the air intake and the air cleaner.

SOURCE: 2000 Lincoln Navigator with rough idling and service engine light

i had the same trouble, there is a rubber boot under the cover on the top of the motor, it is coming from the egr valve, takes about 5 mins to repair and less than 5 dollars.

SOURCE: Rough idle after initial startup.

1995 Lincoln Towncar Idle rough now check engine light on?