2004 Lincoln Aviator: misfire or rough idle

6 of the 81 complaints about the 2004 Lincoln Aviator describe misfire or rough idle.

owner complaints: 6
of this car's complaints: 7%
typical mileage: 52,000
recalls: 0

Is there a fix? 5 service bulletins cover this area of the car. See below

Misfire or rough idle by model year

2025
1
2005
1
2004
6
2003
3

What owners say

Filed Nov 12, 2019 · Electrical, Engine · 205,000 miles · NE

My SUV misfires, slips in and out of gears, stalls at stop signs and lights, accelerates at stop lights. Occasionally when the AC is turned on, there is a very loud clunk sound.

Filed Jul 1, 2011 · Engine · 94,000 miles · TX

Engine began idling roughly, and eventually the engine warning light came on. The problem was diagnosed as a crack in the cylinder head for number 8 cylinder. Talking to lincoln mechanics and checking various discussion groups on the web showed that a large number of other lincoln aviators, and other vehicles with the same engine were experiencing this same failure. The rough idle can be alleviated by increasing the idle speed or taking the car out of gear while idling. Both of these actions are dangerous and can lead to accidents.

Filed Jul 15, 2010 · Brakes, Engine · 8,000 miles · FL

Tl* the contact owns a 2004 lincoln aviator. The contact was driving approximately 30 MPH, approaching a complete stop. While the brakes were engaged the vehicle accelerated toward the oncoming traffic. The brakes were applied repeatedly allowing the vehicle to come to a complete stop. The contact was able to continue normal operation. The failure occurred on three different occasions. The vehicle was taken to an authorized dealer on three separate occasions for the identical failure and the technician was unable to duplicate the failure. Also, the vehicle was taken to an independent mechanic on two different occasions for the acceleration failure which there was no resolutions. In addition, there were intermittent failures with the engine misfiring and revving without warning. Also, the engine stalled when at a complete stop on numerous occasions; and a loud clunking noise would occur during the activation of the air conditioner. Recently, the anti-lock brake system warning light illuminated intermittently. The total repairs on the vehicle consisted of the cylinoid joints replacement; and an update of the computerized system software. The technician informed the contact that the transmission was defective. There had been no additional repairs performed on the vehicle at the time of the complaint. The failure mileage was 8,000.

Filed Aug 31, 2008 · Body, Engine · 48,000 miles · OH

The back hatch panel cracked was fixed , the steering not right some times its hard to steer. Main problem is cylinder coils going bad alot. Now #8 coil went bad and has been replaced 2times, and its still in the shop they cant find out why it keeps coming up #8 still misfiring .. They think its the head now. I understand lincoln has had so many problems with this that they have allowed a 10yr. Extended warranty on all the coils. Is this right ? I want lincoln to do something. I am so mad right now . I will never buy another lincoln. Help me.

Filed Jun 8, 2007 · Engine · 52,000 miles · MA

Engine misfire due to cylinder leakage. Ford recommends replace cylinder head with tsb 06-5-13 for 2003-2004 mustang, 1999-2004 navigator, 2003-2003 blackwood, 2003-2005 aviator, 2003-2004 marauder. Cylinder head replacement will be made if car is still under warranty

Filed Apr 8, 2004 · Transmission · MD

Rough idling at stand still and with acceleration and decceleration with a whining noise, miss firing happened 1st time the day after we bought the car- dealer said he fixed the problem. Happened again just a few weeks later. The car is six weeks old and in the shop for the second time. Dealer says problem is the management processor.