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EnginePart report

2004 Lincoln Aviator Engine Problems

Complaints
5about this part
Share
6%of 81 total for the year
Median mileage
102,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 5 complaints about the engine of the 2004 Lincoln Aviator, 6% of the 81 complaints for this model year. Where a mileage was given, the median is 102,000 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“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.”

NHTSA complaint #10522324, filed 2013-06, 126,225 miles

“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! …”

NHTSA complaint #10554425, filed 2013-12, 72,614 miles

“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. …”

NHTSA complaint #10515361, filed 2013-06, 84,000 miles

“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.”

NHTSA complaint #11279658, filed 2019-11, 205,000 miles

“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.”

NHTSA complaint #10594627, filed 2014-05, 102,000 miles

Related service bulletins

Engine: other model years

YearComplaintsShare of year
2025211%
2023417%
2022613%
2021615%
202076%
200512%
200456%
200322%

Other parts of the 2004 Lincoln Aviator

Transmission and drivetrain
21 complaints
Engine cooling
15 complaints
Body and structure
15 complaints
Electrical system
8 complaints
Air bags
7 complaints
Visibility (wipers, defrost, mirrors)
7 complaints
Steering
6 complaints
Other or unknown
5 complaints
Suspension
5 complaints
Brakes
3 complaints
Exterior lighting
3 complaints
Equipment
2 complaints

← All problems reported for the 2004 Lincoln Aviator

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology