2005 Infiniti FX35 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2005 Infiniti FX35

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2005 Infiniti FX35 Problems

Timing Chain Rattle and Tapping Noise

Rattling and tapping in the front of the engine on the 2003-2008 Infiniti FX35 is very evident, especially on cold starts. This rattling noise should not be taken lightly as it warns of upcoming timing chain failure. 

The cause of the noise is faulty timing chain guide rails and timing chain tensioners that wear out well ahead of schedule. These components are there to keep the timing chain tight and properly positioned. When these parts fail, the timing chain becomes loose, and pieces of the timing chain guides break off, falling into the oil pan. 

To remedy the situation, Nissan/Infiniti has made revised guides and tensioners, but replacement can be very costly. 

Proper oil change intervals and oil type may help slow or prevent the situation. 

Erratic or High Idle After Cleaning Throttle Body

The throttle body for the Infiniti FX35 is known for carbon buildup, and requires regular, light cleaning to maintain peak performance. After cleaning the throttle body, many owners notice a very high idle, erratic (bouncing) idle, and unpredictable power surging. 

The cause is normal ECU adaptation: When the throttle body builds up carbon, the rate of airflow is slightly decreased. The vehicles computer reads this decrease in air volume, and adjusts the throttle body settings to maintain the proper engine idle speed. When the carbon is cleaned out, the ECU now registers too much air, and cannot adjust back to the original settings. While it is trying to change settings, the idle will bounce from low to high, and the car will surge forward at times. 

It has been recommended to simply wipe inside the throttle body every 12,000 miles, and never to touch the flap inside. Also, the cleaning procedure may be best left to a qualified technician.

The solution can be as simple as disconnecting the battery for at least an hour, having the dealer reset the computer, or, in extreme cases, replace the throttle bodies. 

Front wheel bearing causes grinding noise

Owners have reported a number of prematurely worn front wheel bearings. As the bearing fails, a rotational humming or grinding noise may be noted from the front as vehicle speed increases. Replacement of the bearing would be necessary to remedy this condition.

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2005 Infiniti FX35 Questions

Steering wheel adjustments makes a grinding noise whenever the position changes (1 answer)

That is it.

Has anyone had issues with the leather tearing on the front seats? (2 answers)

The day we bought the car (used with 20K miles) the leather in both front seats was severely cracked; mostly along the sides where you control the seat position. It's like the leather pulled away from 'the plastic' and now has ripped further and further. It looks horrible!

is high miles a big problem? (1 answer)

bought this car from a dealer three days ago

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2005 Infiniti FX35 Recalls

Passenger Frontal Air Bag Inflator Ruptures On Deployment

The passenger frontal air bag inflator may rupture on deployment, causing metal fragments to come through the air bag and injure occupants. Dealers will replace the passenger frontal air bag inflator free of charge to resolve the concern.

Front Airbag Inflator Module

This limited regional recall is for vehicles currently registered or first sold in southern Florida, along the Gulf Coast, Puerto Rico, Hawaii, the U.S. Virgin Islands, Guam, Saipan and American Samoa. Upon deployment the passenger airbag inflator could rupture, increasing the risk of personal injury. Dealers will replace the passenger side air bag inflator to correct this concern.

Front Airbag Inflator Module

This limited regional recall is for vehicles currently registered or first sold in Florida, Puerto Rico, Hawaii and the U.S. Virgin Islands, and equipped with Takata-brand air bag inflators. Upon deployment the driver and/or passenger airbag inflator could rupture, increasing the risk of personal injury. Honda dealers will replace the affected airbag inflator modules to correct this concern.

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2005 Infiniti FX35 Reviews

Rated
based on 3 customer reviews
Pearl white beauty..it's a sleek sporty rocket machine..elegant looking from all angles..performs excellent w/over 200,000 miles, 80 on the fwy is smooth, always put in 89 gas..oil changes every 5K miles, do it myself w/new oil filter...love this car..it's so gorgeous!
Before buying this car, I was in the market for a sports car (i.e. Porshe, Audi, Bmw,etc.) However, my wife decides to tell me she was pregnant. I thought my dreams were shattered, and oh came the fx35. An excellent cross between sports car and suv! I assure you, you will not be disappointed! Holla Regards, Alex L.
Perhaps the perfect SUV. Not too big, not too small, drives and handles like a sporty car. It looks as good now as it did four years ago.

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