241 problems have been reported for the 2001 Ford Mustang. The following chart shows the 20 most common problems for 2001 Ford Mustang. The number one most common problem is related to the vehicle's engine and engine cooling with 39 problems. The second most common problem is related to the vehicle's air bags (33 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 2001 Ford Mustang in the United States are 155,616 units [1]. If the total number of problems reported by Ford Mustang owners in the last 23 years is 241, and the age of the vehicle is 23, the PPMY index can then be calculated as
PPMY Index = 241 / 155,616 / 23 * 1000 = 0.07.
For more information, refer to this page: A study of reliability comparison across Ford Mustang model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2001 Ford Mustang in 2001.
| Service Year | Number of Problems |
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| 2024 | |
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| 2001 |
When making the decision between buying a new or used Ford Mustang, the following table can be used to compare the 2001 Ford Mustang with the Ford Mustang from other model years. Note that the number of problems reported for the 2001 Mustang is 241 while the average number of problems reported for the 29 model years of the Ford Mustang is 302.