Infiniti G35 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your Infiniti G35
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Infiniti G35 ProblemsTiming Chain Rattle and Tapping Noise
Rattling and tapping in the front of the engine on the 2003-2007 G35 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.
The throttle body for the Infiniti G35 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.
The crankshaft angle sensor or the camshaft position sensor can fail and cause loss of engine power, an engine that cuts out, and other drivability problems. This will cause the Check Engine Light to illuminate. Certain models have been involved in a recall to replace the camshaft and crankshaft sensors. For more information on this recall, please click here»
Infiniti G35 Questionsmy brake light V DT light and Slip sty n (1 answer)
it be dong this for about 3 or 4
weeks it use to go off after I
started knowit stas on
The problem occurs every 2-3 weeks
I have a P0430 code and I want to replace the cats
Infiniti G35 RecallsPassenger Airbag May Not Deploy as Designed
The wiring connecting the belt tension sensor and the occupant detection sensor control unit under the passenger front seat can move, causing wear and oxidization of the wire connector terminals. These terminal issues can result in interruption of the electrical signal. In the event of a crash, the passenger airbag may not deploy, increasing the risk of injury. Dealers will perform the necessary repairs to correct this issue. This recall is expected to begin on July 12, 2010.
This recall affects certain vehicles equipped Occupant Classification System (OCS) control units manufactured by Continental Automotive Systems. A varistor in the OCS control unit may have been manufactured out of specification. Under certain conditions, this could interupt the signal between the OCS and the air bag control unit (ACU), causing the passenger air bag to be suppressed in an accident. If the air bag does not deploy when needed in a crash, the risk of injury is increased. Dealers will test the signal between the OCS and ACU with a special tool to verify proper function. The seat cushion containing the OCS hardware will be replaced as necessary. The recall began November 4, 2008.
Certain vehicles may contain headlights that do not meet Federal Motor Vehicle Safety Standards. Specifically # 108 "Lamps, reflective devices, and associated equipment. This may increase the risk of accidents both during the day and at night. Dealer will replace headlight assemblies. The Infiniti recall # is N/A - Service bulletin # is 06V394000