Infiniti QX4 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your Infiniti QX4
Infiniti QX4 Problems
Failure of the EVAP System charcoal canister may allow charcoal debris to infiltrate the EVAP system causing other failures. Cleaning the vapor lines to ensure the system is clear of debris is important when repairing EVAP system failures.
Carbon deposits on the throttle body may cause any of the following issues: Idle speed fluctuation, incorrect idle speed, difficulty accelerating way from a stop, and or increased accelerator pedal resistance. Our technicians tell us a revised throttle body and associated parts are available to resolve this issue.
The Check Engine Light may illuminate with code P0138, P0140, P0158, and/or P0160 stored. Our technicians recommend replacing the rear oxygen sensor, and reprogramming the vehicle's powertrain control module (PCM) with upgraded software to correct this concern.
Infiniti QX4 Questions
When I turn the air on, it will not blow out of the front vents, but it blows out of the defroster instead.
If I shift to neutral and raise the rpms a bit while I am setting there the temp goes back to normal
My qx4 starts fine but once u have driven it for about 2 minutes, it starts going off by itself as though the fuel supply has been cut. i have changed fuel pump but no result. i think it might be related to the air switch which i have also changed. what could be the problem.
also what does P400 ...
Infiniti QX4 Recalls
Airbags use a chemical reaction contained in an inflator module to create the pressure necessary to inflate the bags when deployment is required. These vehicles are being recalled because the front passenger airbag inflator may produce excessive internal pressure when deployed. As a result, the inflator module could rupture, causing metal fragments to strike vehicle occupants. Dealers will inspect and replace any defective passenger front airbag inflator modules found.
In areas where winter road salt is used, a mixture of snow/water and salt may enter an assembly location hole in the upper strut housing. This corrosive mixture can collect on the mating surface of the strut housing panel and the inner hood ledge assembly; over time, this can cause rusting of the strut tower housing. The rust can weaken the housing, causing it to crack and pull away from the inner hood ledge assembly. This can lead to grinding noises and increased steering effort, which, if severe enough, can cause the steering column to break. This would result in a loss of steering control, increasing the risk of a crash. Dealers will inspect the strut housing and repair the vehicles as necessary. An interim notification letter should be mailed to owners prior to May 16, 2011.
Infiniti QX4 Reviews
I own a 2002 Infinity QX4 THAT HAS HAD TO HAVE EMMISSIONS REPAIRS. HAVE HAD TO REPLACE BOTH CATALYC CONVERTERS LEFT AND RIGHT SIDES W/O'2 SENSORS (NOT CHEAP)...REPLACED LOW BEAM BALLAST CONTROL UNIT (VERY EXPENSIVE PART AND DEALER ITEM ONLY). NOW EXPERIENCING SWAYING WHILE DRIVING ON HIGHWAY...HAVE HAD NEW TIRES INSTALLED AND WHEEL ALIGNMENT DONE...THIS CAR HAS BEEN NOTHING BUT A MONEY PIT...NO...
The problems began in early 2012, when we signed up for a new “Express Service and Oil Change” program at our local dealer. We thought that this new offering, given that it allowed us to obtain service without an appointment, would make life easier. Instead, it has caused us untold hours of lost time, and consistent struggles to get Infiniti to deliver the level of service we had come to expect...
Very pleased with the QX4. Have not had any major issues. I wish the fuel economy was better though.