1999 Infiniti QX4 Engine cooling Problems
- Complaints
- 3about this part
- Share
- 7%of 43 total for the year
- Median mileage
- 47,105miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the engine cooling of the 1999 Infiniti QX4, 7% of the 43 complaints for this model year. Where a mileage was given, the median is 47,105 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.
“While parked with engine off vehicle caught on fire. Fire was extinguished by the fire department. Fire department determined that fire started in the engine with cause undetermined. Vehicle was not drivable.”
NHTSA complaint #10037956, filed 2003-08, 47,105 miles“Consumer stated o2 sensor was causing check engine light to come on and stay on. This has been going on for the last 6 months. Consumer took the vehicle to the mechanic, and was subjected to having a wiring harness installed. Consumer had that done, but it did not solve the problem. They were talking about another $1200.00 to repair something else.”
NHTSA complaint #10095000, filed 2004-10“The vehicle experienced a sudden loss of control while driving under normal driving conditions resulting in the vehicle hitting a curb and then a wall which caused damage to the front bumper, passenger side of vehicle and the tire punctured. Nlm”
NHTSA complaint #553068, filed 2000-07Engine cooling: other model years
Other parts of the 1999 Infiniti QX4
14 complaintsSuspension
14 complaintsBody and structure
8 complaintsFuel system
6 complaintsElectrical system
5 complaintsTransmission and drivetrain
3 complaintsAir bags
2 complaintsBrakes
2 complaintsExterior lighting
2 complaintsOther or unknown
2 complaintsVisibility (wipers, defrost, mirrors)
2 complaintsEngine
1 complaints
← All problems reported for the 1999 Infiniti QX4
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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