113 problems have been reported for the 2004 Lincoln Aviator. The following chart shows the 17 most common problems for 2004 Lincoln Aviator. The number one most common problem is related to the vehicle's power train with 20 problems. The second most common problem is related to the vehicle's engine and engine cooling (18 problems).
| Problem Category | Number of Problems |
|---|---|
| Power Train | |
| Engine And Engine Cooling | |
| Structure | |
| Electrical System | |
| Equipment | |
| Air Bag | |
| Visibility | |
| Steering | |
| Suspension | |
| Service Brakes | |
| Unknown Or Other | |
| Exterior Lighting | |
| Wheel | |
| Gasoline Fuel System | |
| Seats | |
| Tire | |
| Latches/locks/linkage |
In our research we use the PPMY index to compare the reliability of vehicles. The PPMY index of a certain model is defined as the problems reported per thousand vehicles per Year. The total sales of the 2004 Lincoln Aviator in the United States are 27,042 units [1]. If the total number of problems reported by Lincoln Aviator owners in the last 18 years is 113, and the age of the vehicle is 18, the PPMY index can then be calculated as
PPMY Index = 113 / 27,042 / 18 * 1000 = 0.23.
For more information, refer to this page: A study of reliability comparison across Lincoln Aviator model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2004 Lincoln Aviator in 2004.
| Service Year | Number of Problems |
|---|---|
| 2022 | |
| 2021 | |
| 2020 | |
| 2019 | |
| 2018 | |
| 2017 | |
| 2016 | |
| 2015 | |
| 2014 | |
| 2013 | |
| 2012 | |
| 2011 | |
| 2010 | |
| 2009 | |
| 2008 | |
| 2007 | |
| 2006 | |
| 2005 | |
| 2004 |
When making the decision between buying a new or used Lincoln Aviator, the following table can be used to compare the 2004 Lincoln Aviator with the Lincoln Aviator from other model years. Note that the number of problems reported for the 2004 Aviator is 113 while the average number of problems reported for the 5 model years of the Lincoln Aviator is 77.
| Model Year | Number of Problems |
|---|---|
| 2021 Aviator | |
| 2020 Aviator | |
| 2005 Aviator | |
| 2004 Aviator | |
| 2003 Aviator |