2001 Infiniti QX4 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2001 Infiniti QX4

2001 Infiniti QX4 Problems

The 4WD light may flash on and off intermittently with no transfer case related fault code stored in the powertrain control module (PCM). Our technicians recommend to ensure the correct Nissan/Infinity approved fluid is present in the transfer case if this condition occurs.

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.

The mass airflow sensor may fail resulting in a loss of power and/or Check Engine Light illumination with code P0171 and/or P0174 stored. Our technicians recommend replacing the failed airflow sensor to correct this concern.

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2001 Infiniti QX4 Questions

Oil is not leaking from the gaskets or the pan is it the sending unit

all fuses are o.k.; light bulbs ok, wiring ok, light switch ok.

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2001 Infiniti QX4 Recalls

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.

ON CERTAIN VEHICLES ORIGINALLY SOLD IN OR CURRENTLY REGISTERED IN THE STATES OF CONNECTICUT, DELAWARE, IOWA, ILLINOIS, INDIANA, KENTUCKY, MASSACHUSETTS, MAINE, MARYLAND, MICHIGAN, MINNESOTA, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, TENNESSEE, VERMONT, VIRGINIA, WEST ...VEHICLE DESCRIPTION: SPORT UTILITY VEHICLES. SOME OF THE BRACKETS USED TO ATTACH THE TWO GAS STRUTS TO THE REAR DOOR (HATCH) MAY HAVE BEEN IMPROPERLY MADE. AT HIGH AMBIENT TEMPERATURES, THE INCREASE IN GAS PRESSURE IN THE STRUT(S) COULD CAUSE ONE OR BOTH BRACKETS TO BEND, RESULTING IN THE ST...

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2001 Infiniti QX4 Reviews

i have a 01 QX4 and has been nothing but a problem.. I have replaced the radatior, therostat, spark plugs, coil pack, HID box, and my most recent incident is replacing the waterpump, it also needs front shocks. ive had acouple infiniti's and they were all great but this truck gives infiniti a bad name. i have only owned it for 6 months and all these problems!! On top of all that the dang thing ...

My QX4 Infinity has been giving me nothing but problem it's a 2001 the code pc160/code 300 multipy misfire 02 sensor / right cataylac converter.is this car worth the cost of repair?

i have an infinity qx4 2001 2wd, the speedometer dont go beyond 45 no matter how fast i go. I changed the instrument cluster and the speed sensor inside the transmission and it didnt work. I went to nissan dealership and they diagnosed the car and said the rare passenger speed sensor is bad.When i try to inquire from infinity dealership about the parts they told me the car does not have a speed...

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