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.
2004 Lincoln Aviator engine problems
20 complaints (25% of all complaints for this car). Typical mileage when it fails: 74,000.
- owner complaints
- 20
- of this car's complaints
- 25%
- typical mileage
- 74,000
- crashes
- 0
- recalls
- 0
Which part fails
- Engine5
At what mileage
Complaints by mileage at the time of the problem.
0k-25k
25k-50k
50k-75k
75k-100k
100k-125k
125k-150k
150k-175k
175k-200k
200k+
Lincoln Aviator engine problems in other years
Specific symptoms reported on the 2004 Lincoln Aviator engine
Phrases found in the owners' own descriptions, so one complaint can mention several symptoms.
Related recalls
No recalls on record for this model year.
Related investigations
Spark plug ejection from cylinder head
On september 6, 2005, odi received a petition requesting that the agency investigate allegations of engine spark plug ejection in certain model year 1997 through 2004 ford vehicles with triton v-8 and v-10 engines.odi received a total of 474 non-duplicative complaints on the subject vehicles where the complainant, or the dealer repairing the vehicle, reported that a spark plug detached from the cylinder and/or ejected from the engine.as of december 8, 2005, odi is not aware of any allegations where the alleged defect resulted in a loss of vehicle control, a crash, an injury, or a fatality in any of the 10,319,810 subject vehicles.in addition, odi is aware of only two incidents where the vehicle stalled without restart.information contained in the odi consumer complaints and obtained from 72 telephone interviews with complainants showed the following:(1) 99% of the complaints were on my 1997 to 2002 subject vehicles.(2) most the complainants reported hearing a loud pop while driving or upon starting up the vehicle followed by a loud, repetitive clicking or popping sound.(3) many of the complainants reported that the popping sound was accompanied by some loss of vehicle power; however, in 99% of the incidents reported, the vehicle did not stall.in the very few incidents where the vehicle did stall, most vehicles could be restarted.(4) only a small percentage of the complainants cited that they smelled gas or a slight burning smell when the incident occurred.(5) in all but a very few incidents, vehicle damage was limited to the engine.in one incident, the complaint reported that the fuel rail was damaged and replaced after one of the spark plugs ejected from the engine; however, the complainant reported that the damage did not result in any type of fuel leak or fire.in another incident, the only incident where a fire was alleged, the complainant reported that no fluid leak was observed, but that a fire resulted after the spark plug had ejected from the engine and he had restarted the vehicle and driven to another location.none of the complainants reported any damage to the vehicle hood.(6) only two complainants reported that they observed what appeared to be some drops of fuel coming from the cylinder where the spark plug had failed or on the spark plug itself; however, each of these complainants reported that there was no smoke or flames as a result of his incident.as the petitioner noted, and odi?s analysis showed, it is possible for a spark plug to detach from the engine cylinder threads in the subject vehicles.however, odi?s analysis of 474 complaints describing such incidents found only a very few alleged any safety-related consequences.none of these showed any evidence of a serious safety consequence.given the large population and relatively long exposure time of the subject vehicles, the complaint analysis indicates that the risk to motor vehicle safety from the alleged defect is very low.in view of the foregoing, it is unlikely that the federal safety agency would issue an order for the notification and remedy of the alleged defect at the conclusion of the investigation requested in the petition.therefore, in view of the need to allocate and prioritize the federal safety agency?s limited resources to best accomplish the agency?s safety mission, the petition is denied.
DP05005
What 2004 Lincoln Aviator owners say
Most recent owner complaints, unedited.
Tl* the contact owns a 2004 lincoln aviator. The contact stated that while driving 60 MPH, the vehicle stalled as all of the warning lights illuminated. The vehicle was towed to the dealer for diagnostic testing. The manufacturer was made aware of the failure. The vehicle was not repaired. The failure and current mileage was 102,000.
I purchased this vehicle as a certified used vehicle. It had an extended warranty. Once it expired I've experienced every single complaint people have stated online about this vehicle. As of today (12/02/13) it still has only 74,000 miles on it and the latest problem is the transmission needs to be replaced but they don't know why. I am a stay at home mom and wear-and-tear on it is very minimal (grocery shopping, to and from school, etc.). I have never had so many problems on a "so called" luxury vehicle before! I've had bad coils in cylinders 3, 4, 5 (twice), and 7 replaced under lincoln's recall. The tailgate panel cracked (just like all the other people who own this vehicle and the mountaineers have complained about), but they won't fix it. In addition, a white plastic piece fell out of the top half of the tailgate and now it will not close anymore therefore I can no longer take it through car washes. The bracket for the sun visor on my passenger side completely deteriorated and caused the visor to suddenly dangle from the roof of my car while driving. Now, I cannot flip it up and it causes a blind spot. There is also something faulty with the brake light switch which drains my battery on a regular basis and I have to have my jumped. The brake light switch has been replaced 3 times now because it is has shorted out. To complicate matters, every time I take the car to the dealership for these repairs, they insist on doing a "diagnostics check" and every time they want to charge a fee for this service. Every time the price is different...some times its $50, sometimes its $100. This vehicle is a lemon and I will never buy a ford/lincoln/mercury again.
The cars check engine light came on in 4-20-07 just over 50,000 miles. We were told by ford two cylinder heads7 &8 had issues and would require a $5900.00 o.h. They did offer us $1500.00 towards the engine. We learned latter, ford had a inter-office bulletin about this problem as did all-data. Now at 126,00 we will have to have the engine overhauled. Ford should be mandated to cover the full cost of these repairs. They have known about this issue since 2004.
1 year after purchase at 52,000 -replaced coils (recalled) , brake switch, cost just to lead and find issues after full service maintenance, $1500. 2 yrs in, transmission due to thing that is attached and looks like a brain plate to the transmission, (sms pack)still owing plus now, upcoming on latest transmission/computer/ at 84,000 :( s car has taken me completely upside down and in the hole owing $12,000 + $3000 for newest repair. Just got car back and now it feels like there is a potential small delay and wants to jump in the middle of traffic which I just experienced yesterday. Why is this car still on the road and not recalled. The problems go on and on and on. I emailed ford and was basically told to take the car into their dealership where I can be robbed even further. Sad!! These are only a small fraction of links that are out there due to lincoln having known issues. I spoke with a car salesman this last week and he has a 2005 aviator and just replaced the whole transmission at 92,000 miles. Http://www.arfc.org/complaints/2004/lincoln/ls/power_train/problem.aspx http://www.automotiveforums.com/t936173-possible_solution_for_the_common_lincoln_ls_trans_problems.html http://VIN.centralclearinghouse.com/central/VIN.nsf/0/22bff5be198030b78825777d002f814d http://repairpal.com/shift-lever-stuck-in-drive-
My lincoln aviator started making a horrible noise in the rear of the vehicle on the morning of september 4, 2011. My wife took the aviator to the aaa car care center to find and repair the issue. The aaa certified technician placed the aviator on the lift and discovered the entire differential unit was hanging freely and literally swinging under the vehicle. After further inspection, the welding that holds the mount to which the differential until is bolted, broke from the frame. This issue of a differential mount weld breaking free has never been seen by the aaa certified technician or the aaa service manager with over 30 years of experience. Furthermore, the mount was only welded on one side (side closest to the rear of the vehicle). I visited the local lincoln dealership and explained the issue with my aviator?s differential mount only being welded on one side and asked to see an aviator or explorer that would have the same differential mounting system. This lincoln dealership had an explorer up on the lift and showed me that the differential mount on all aviators and explorers do indeed have the differential mount welded on both sides to the frame. The potential damage from the differential unit falling off the vehicle and the drive shaft becoming dislodged is exceedingly high and could pose a fatal scenario. I am asking for lincoln to investigate this potentially fatal error of only having one weld seam holding the differential unit mount to the frame and inspect for any further damages as a result, in addition to inspecting for other areas of faulty craftsmanship. This manufacturing defect is in no way the error of the consumer or driving behavior. This issue points directly to the craftsmanship and integrity of the weld and quality control of lincoln.
Vehicle shut off suddenly after a beeping sound and a low oil pressure light and battery light came on. This happened three times the same day and after seen this incident reported by other customers, quite dangerous considering that one could be hit by a vehicle driving behind if the driver is not keep safe distance and can stop. The steering becomes stiff and the brakes and accelerator pedals get locked into place. The vehicle is able to be restarted but the occurrence is quite dangerous and puts ones life at risk.
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.
My 2004 lincoln aviator engine has a burnt valve with less than 90k miles on it. Rich morton lincoln dealership in glen burnie, md says my repair will be $5,400 if I want to fix it, which they do not recommend. I see online that many others have the very same problem with this vehicle. I have also had to tow in my car as several times the gearshift stuck in park and could not be shifted to drive. I spoke with other owners who had the same problem. Also, my tailgate window randomly flies up while driving, just like other owners have reported. My main issue is that my vehicle, an expensive one, is now not drivable and needs the $5,400 repair because of a defect in manufacture that ford will not acknowledge. Help, please.
2004 lincoln aviator 74,000 miles. While attempting to merge onto interstate 95 s the vehicle shuddered and lost power unable to accelerate. Final determination by a mechanic determined the #8 cylinder was not holding pressure because the valve was not sealing correctly. The 4.6l v8 ford engine's valve's are powder coated and this caused the value to stick and overtime warped the valve's components due to excessive heat. This is an engine design defect and the engine and will require a complete valve job to replace the head, head gasket and faulty valve stem. Ford has issued a technical bulletin on the subject but will not perform a voluntary recall. This is a serious safety issue and could cause serious injury or death if the vehicle losses power while merging with or evading oncoming traffic.
Questions about the 2004 Lincoln Aviator engine
Does the 2004 Lincoln Aviator have engine problems?
Owners have filed 20 complaints about the engine of the 2004 Lincoln Aviator, 25% of all its complaints.
At what mileage do 2004 Lincoln Aviator engine problems start?
The typical (median) mileage in owner complaints is 74,000 miles.
Was there a recall on the 2004 Lincoln Aviator engine?
There is no recall for this problem on this model year.
What year does the Lincoln Aviator have bad engine?
The Lincoln Aviator model years with the most engine complaints are 2004 (20 complaints) and 2003 (17 complaints).
Other 2004 Lincoln Aviator problems
Transmission 21Body 15Electrical 8Airbags 7Visibility 7Steering 6Suspension 5Brakes 3Lights 3Fuel system 2Seats 2Tires 2Wheels 2Locks 1
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