Engine coolingPart report
1991 Infiniti Q45 Engine cooling Problems
- Complaints
- 4about this part
- Share
- 12%of 34 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the engine cooling of the 1991 Infiniti Q45, 12% of the 34 complaints for this model year.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Engine cooling: other model years
Other parts of the 1991 Infiniti Q45
Equipment
7 complaintsBrakes
6 complaintsSuspension
5 complaintsElectrical system
4 complaintsTransmission and drivetrain
4 complaintsVisibility (wipers, defrost, mirrors)
4 complaintsAir bags
2 complaintsFuel system
2 complaintsLatches, locks and linkages
2 complaintsOther or unknown
1 complaintsBody and structure
1 complaintsTires
1 complaints
7 complaintsBrakes
6 complaintsSuspension
5 complaintsElectrical system
4 complaintsTransmission and drivetrain
4 complaintsVisibility (wipers, defrost, mirrors)
4 complaintsAir bags
2 complaintsFuel system
2 complaintsLatches, locks and linkages
2 complaintsOther or unknown
1 complaintsBody and structure
1 complaintsTires
1 complaints
← All problems reported for the 1991 Infiniti Q45
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