636 problems have been reported for the 2005 Ford Five Hundred. The following chart shows the 25 most common problems for 2005 Ford Five Hundred. The number one most common problem is related to the vehicle's power train with 117 problems. The second most common problem is related to the vehicle's engine and engine cooling (100 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 2005 Ford Five Hundred in the United States are 97,911 units [1]. If the total number of problems reported by Ford Five Hundred owners in the last 20 years is 636, and the age of the vehicle is 20, the PPMY index can then be calculated as
PPMY Index = 636 / 97,911 / 20 * 1000 = 0.32.
For more information, refer to this page: A study of reliability comparison across Ford Five Hundred model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2005 Ford Five Hundred in 2005.
| Service Year | Number of Problems |
|---|---|
| 2025 | |
| 2024 | |
| 2023 | |
| 2022 | |
| 2021 | |
| 2020 | |
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| 2018 | |
| 2017 | |
| 2016 | |
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| 2014 | |
| 2013 | |
| 2012 | |
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| 2005 |
When making the decision between buying a new or used Ford Five Hundred, the following table can be used to compare the 2005 Ford Five Hundred with the Ford Five Hundred from other model years. Note that the number of problems reported for the 2005 Five Hundred is 636 while the average number of problems reported for the 4 model years of the Ford Five Hundred is 340.
| Model Year | Number of Problems |
|---|---|
| 2007 Five Hundred | |
| 2006 Five Hundred | |
| 2005 Five Hundred | |
| 2004 Five Hundred |