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Engine coolingPart report

2003 Lincoln Aviator Engine cooling Problems

Complaints
15about this part
Share
14%of 111 total for the year
Median mileage
80,000miles
Trend
StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.

NHTSA recorded 15 complaints about the engine cooling of the 2003 Lincoln Aviator, 14% of the 111 complaints for this model year. Where a mileage was given, the median is 80,000 miles.

Example complaints

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

“My 2003 Lincoln Aviator acquired a crack in the engine while my wife was driving with our children. Upon further research of problem, it shows in ford's TSB's that this is a known issue with the engine. The repair will cost approx. $5000 to fix, the problem here is ford is aware but denying the problem when repairing the engine. How can they do this.”

NHTSA complaint #10240219, filed 2008-08, 98,000 miles

“After owning a 2003 Lincoln Aviator close to 4 years it is now down. I took good care of this SUV and always had changed the oil with synthetic oil . With only 79,000 miles it now has a engine knock . I took it to the Lincoln dealer and they said I need a new engine and it would be 8,800 dollars since my extended warranty just ran out. I have been reading other people had this experience with this SUV and year but ford does not want to correct this.”

NHTSA complaint #10433547, filed 2011-10, 79,000 miles

“My 2003 Lincoln Aviator had a rough idle and was a little sluggish. With only 92,000 miles on a $45,000 car, this surprised me. This is a high performance engine. Upon accelerating to enter I-20 the vehicle almost died. Luckily ,there were no vehicles coming - had this been during rush hour it might not have been so lucky. I took the vehicle to city garage to have it checked out, and was told it had a major engine problem. The #8 cylinder had on 70 lbs of pressure, and the vehicle needed a valve job. …”

NHTSA complaint #10186203, filed 2007-03, 92,000 miles

“I don't know if you can help me , but if you could point me in the right direction I would greatly appreciate it. I have a problem with ford motor corp .I want to complain about a severe engine flaw on there 2003 Aviator with the 4.6 motor .I have contacted them over and over and the same response out of warranty sorry .as stated in there (tbs) report 06-5-13 cylinder 7 is the weak point of this motor , to check compression ,witch of course my engine failed as I am sure many others failed as well. This problem seems to develop between 60,000 to 80,000 mi. …”

NHTSA complaint #10343493, filed 2010-07, 82,000 miles

“I own a 2003 Lincoln Aviator with 85,000 miles on it . It is a 48,000 dollar vehicle and I am less than satisfied with the way its held up . The vehicle sees synthetic oil changes every 3,000 miles . At around 79,000 the engine died on while driving on a hilly country road with my family in the car . I was able to muscle the car over to the side of the road with no power steering and limited brakes we ended up in a corn field , however there was no damage to the vehicle there was a verry unhappy farmer . The vehicle then started up and ran but was running rough with a check engine light . …”

NHTSA complaint #10404265, filed 2011-06, 79,000 miles

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
2024114%
202314%
202011%
200512%
20041519%
20031514%

Other parts of the 2003 Lincoln Aviator

Transmission and drivetrain
55 complaints
Body and structure
15 complaints
Vehicle speed control
11 complaints
Brakes
9 complaints
Electrical system
8 complaints
Air bags
7 complaints
Visibility (wipers, defrost, mirrors)
7 complaints
Steering
5 complaints
Suspension
5 complaints
Tires
5 complaints
Other or unknown
4 complaints
Equipment
3 complaints

← All problems reported for the 2003 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