252 problems have been reported for the 2021 Ford Expedition. The following chart shows the 21 most common problems for 2021 Ford Expedition. The number one most common problem is related to the vehicle's power train with 84 problems. The second most common problem is related to the vehicle's engine and engine cooling (53 problems).
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 2021 Ford Expedition in the United States are 79,513 units [1]. If the total number of problems reported by Ford Expedition owners in the last 5 years is 252, and the age of the vehicle is 5, the PPMY index can then be calculated as
PPMY Index = 252 / 79,513 / 5 * 1000 = 0.63.
For more information, refer to this page: A study of reliability comparison across Ford Expedition model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2021 Ford Expedition in 2021.
| Service Year | Number of Problems |
|---|---|
| 2026 | |
| 2025 | |
| 2024 | |
| 2023 | |
| 2022 | |
| 2021 |
When making the decision between buying a new or used Ford Expedition, the following table can be used to compare the 2021 Ford Expedition with the Ford Expedition from other model years. Note that the number of problems reported for the 2021 Expedition is 252 while the average number of problems reported for the 31 model years of the Ford Expedition is 332.