1986 Mercury Cougar Engine cooling Problems
- Complaints
- 1about this part
- Share
- 8%of 13 total for the year
- Median mileage
- 100,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the engine cooling of the 1986 Mercury Cougar, 8% of the 13 complaints for this model year. Where a mileage was given, the median is 100,000 miles.
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.
“Head gasket on 3.8 engine has blown two times in 8 months. Car overheats and has oil in radiator. Heater does not work. And very dim lighting on speedometer.”
NHTSA complaint #10098640, filed 2004-11, 100,000 milesEngine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2002 | 11 | 12% |
| 2001 | 11 | 13% |
| 2000 | 26 | 12% |
| 1999 | 67 | 15% |
| 1997 | 30 | 39% |
| 1996 | 21 | 34% |
| 1995 | 19 | 17% |
| 1994 | 32 | 23% |
| 1993 | 105 | 54% |
| 1992 | 18 | 20% |
| 1991 | 17 | 23% |
| 1990 | 9 | 10% |
| 1989 | 9 | 11% |
| 1988 | 6 | 11% |
| 1987 | 5 | 15% |
| 1986 | 1 | 8% |
| 1985 | 1 | 10% |
| 1984 | 4 | 24% |
Other parts of the 1986 Mercury Cougar
4 complaintsSeat belts
3 complaintsVehicle speed control
2 complaintsBrakes
1 complaintsFuel system
1 complaintsSeats
1 complaintsBody and structure
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints
← All problems reported for the 1986 Mercury Cougar
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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