2018 Ford Mustang engine problems
53 owner complaints filed with NHTSA name the engine on the 2018 Ford Mustang — 28% of all complaints for this model year.
What owners report
“1. Component failed and availability for inspection: The engine assembly block failed due to a manufacturing defect known as "coolant intrusion into the cylinders." The vehicle and the defective engine are currently located at my residence and remain fully available for federal or manufacturer…”
filed May 20, 2026
“A check engine light turned on and the vehicle was taken to a local dealership. The check engine light was for an engine misfire and was diagnosed further. There was an engine failure due to coolant entering the system. Upon further research, I learned this is a common issue for 2016-2020 Ford…”
filed Apr 17, 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% |
| 2020 Mustang | 23 | 20% |
| 2019 Mustang | 45 | 32% |
| 2017 Mustang | 26 | 10% |
| 2016 Mustang | 74 | 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 2018 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.