1990 Mercury Cougar Engine Problems
- Complaints
- 1about this part
- Share
- 1%of 86 total for the year
- Median mileage
- 60,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the engine of the 1990 Mercury Cougar, 1% of the 86 complaints for this model year. Where a mileage was given, the median is 60,000 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.
“Heavy traffic on state highway engine overheating alarm activated,incident has occured twice,in traffic,everything had to be turned off and I had to pull off of highway, other complaint dash panel lights out with definitely electrical issue,almost will not start,this occured while driving and now eill not come back on at all”
NHTSA complaint #11024101, filed 2017-09, 60,000 milesEngine: other model years
Other parts of the 1990 Mercury Cougar
19 complaintsVehicle speed control
18 complaintsSeat belts
15 complaintsBrakes
9 complaintsEngine cooling
9 complaintsExterior lighting
5 complaintsFuel system
5 complaintsLatches, locks and linkages
5 complaintsSteering
4 complaintsVisibility (wipers, defrost, mirrors)
4 complaintsBody and structure
2 complaintsTransmission and drivetrain
2 complaints
← All problems reported for the 1990 Mercury Cougar
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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