2002 Infiniti QX4 Engine cooling Problems
- Complaints
- 3about this part
- Share
- 8%of 37 total for the year
- Median mileage
- 120,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the engine cooling of the 2002 Infiniti QX4, 8% of the 37 complaints for this model year. Where a mileage was given, the median is 120,000 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.
“My 2002 Infiniti QX4 has had three catalytic converters replaced due to a crack in the seam of the catalytic converter on both sides. My vehicle has 18,800 miles on it.”
NHTSA complaint #10039226, filed 2003-09, 12,200 miles“While moving of from a stop sign,there is a sudden acceleration surge with a loud revving of the engine while driving. Car speeds for approximately two blocks before coming to a stop. This happened on 12/12/2010 and 12/19/2012. 2003 Infiniti QX4.”
NHTSA complaint #10371236, filed 2010-12, 120,000 miles“The contact owns a 2002 Infiniti QX4. The contact was driving approximately 70 MPH when the vehicle completely stalled without the warning. The vehicle was towed to the dealer for diagnosis. The technician informed the contact that three power valve screws detached from the engine. The vehicle was in the process of being repaired at the contacts expense. The failure mileage was 123,000.”
NHTSA complaint #10365022, filed 2010-11, 123,000 milesEngine cooling: other model years
Other parts of the 2002 Infiniti QX4
14 complaintsSteering
7 complaintsAir bags
5 complaintsVehicle speed control
4 complaintsBrakes
3 complaintsBody and structure
3 complaintsElectrical system
2 complaintsExterior lighting
2 complaintsFuel system
2 complaintsOther or unknown
2 complaintsSeat belts
2 complaintsTransmission and drivetrain
2 complaints
← All problems reported for the 2002 Infiniti QX4
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