2020 Ford Mustang engine problems
25 owner complaints filed with NHTSA name the engine on the 2020 Ford Mustang — 21% of all complaints for this model year.
What owners report
“Vehicle has 396 miles on the odometer. While preparing to back up, with the engine idling , the engine shut off without warning and I had no control of the steering and would not restart when I attempted to do so. This could have put anyone behind me at sever risk or maybe caused an accident should…”
filed Sep 10, 2026
“2020 Ford Mustang with the 2.3L EcoBoost engine. The vehicle has a documented history of coolant loss with no visible external leak, consistent with the known coolant-intrusion defect in Ford's 2.3L EcoBoost engines where coolant leaks internally into the cylinders. The vehicle previously threw a…”
filed Aug 20, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Engine problems in other Mustang years
| Year | Reports | Share |
|---|---|---|
| 2024 Mustang | 9 | 12% |
| 2022 Mustang | 5 | 10% |
| 2021 Mustang | 8 | 15% |
| 2019 Mustang | 50 | 34% |
| 2018 Mustang | 56 | 29% |
| 2017 Mustang | 26 | 10% |
| 2016 Mustang | 75 | 20% |
| 2015 Mustang | 51 | 12% |
| 2014 Mustang | 18 | 5% |
| 2013 Mustang | 22 | 8% |
| 2012 Mustang | 30 | 6% |
| 2011 Mustang | 48 | 10% |
Other reported problem areas on the 2020 Ford Mustang
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.