1991 Ford Mustang Engine cooling Problems
- Complaints
- 6about this part
- Share
- 8%of 77 total for the year
- Median mileage
- 74,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 6 complaints about the engine cooling of the 1991 Ford Mustang, 8% of the 77 complaints for this model year. Where a mileage was given, the median is 74,000 miles. 1 a fire, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Engine head gasket was replaced under the owner's notification campaigns. Head gasket blew again, but the dealership was refusing to repair it because it was over the 100,000 miles of the campaigns warranty.”
NHTSA complaint #10042712, filed 2003-10, 74,000 miles“While driving vehicle started to lose oil pressure. Oil gauge started to fluctuate. After parking vehicle, made calls to mechanics. Was informed a composite was replaced in the oil pan gasket. The caused the engine to be messed up.”
NHTSA complaint #862579, filed 2000-05Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 1 | 5% |
| 2022 | 1 | 2% |
| 2021 | 2 | 4% |
| 2020 | 3 | 2% |
| 2019 | 11 | 7% |
| 2018 | 8 | 4% |
| 2017 | 8 | 3% |
| 2016 | 8 | 2% |
| 2014 | 1 | 0% |
| 2013 | 1 | 0% |
| 2012 | 3 | 1% |
| 2011 | 7 | 2% |
| 2010 | 4 | 2% |
| 2009 | 1 | 1% |
| 2008 | 2 | 1% |
| 2007 | 5 | 1% |
| 2006 | 16 | 4% |
| 2005 | 25 | 4% |
| 2004 | 6 | 5% |
| 2003 | 39 | 27% |
| 2002 | 22 | 19% |
| 2001 | 24 | 14% |
| 2000 | 34 | 11% |
| 1999 | 31 | 15% |
| 1998 | 40 | 17% |
| 1997 | 38 | 22% |
| 1996 | 82 | 33% |
| 1995 | 339 | 56% |
| 1994 | 160 | 45% |
| 1993 | 11 | 11% |
| 1992 | 7 | 10% |
| 1991 | 6 | 8% |
| 1990 | 10 | 12% |
| 1989 | 6 | 6% |
| 1988 | 4 | 4% |
| 1987 | 5 | 13% |
| 1986 | 5 | 17% |
| 1985 | 2 | 13% |
| 1984 | 4 | 22% |
| 1983 | 1 | 20% |
Other parts of the 1991 Ford Mustang
31 complaintsTransmission and drivetrain
9 complaintsAir bags
7 complaintsBrakes
5 complaintsFuel system
4 complaintsSeats
4 complaintsExterior lighting
3 complaintsSeat belts
3 complaintsSteering
2 complaintsBody and structure
2 complaintsSuspension
2 complaintsVehicle speed control
2 complaints
← All problems reported for the 1991 Ford Mustang
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology