2003 Infiniti G35 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2003 Infiniti G35

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2003 Infiniti G35
$
1,943
to $
3,523
2003 Infiniti G35
$
291
to $
685
2003 Infiniti G35
$
399
to $
685
2003 Infiniti G35
$
297
to $
456
2003 Infiniti G35
$
281
to $
893

2003 Infiniti G35 Problems

Check Engine Light and Engine Stalling

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»

Timing 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. 

Erratic or High Idle After Cleaning Throttle Body

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. 

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2003 Infiniti G35 Recalls

Fuel May Leak from the Fuel Filler Hose

The fuel filler hose may crack and result in fuel leaking while filling the gas tank. A fuel leak in the presence of an ignition source can cause a fire. Dealers will replace the fuel filler hose. The recall began on March 13, 2006. The Infiniti recall number is R0508 and the Nissan recall number is R0505.

Engine May Stop Running Without Warning

The circuit board for the crank position sensor and cam position sensor may have improper solder joints. This could cause the Service Engine Soon lamp to come on, the engine may not start, you could experience reduced power, or the engine may stall without warning, which could result in a crash. Dealers will replace the the crank position sensor, cam position sensors, and in some cases, the variable timing control sensors. The recall began on December 22, 2003. The Nissan recall number is R2022 and the Infiniti recall number is R3021.

Brake Lights May Not Work When Brake Is Applied

The brake stop lamp switch may malfunction, which means the brake lights may not illuminate when the brake is pressed. This could result in a crash without warning. Dealers will replace brake lamp switch. The recall began June 23, 2003. The Nissan recall number is R3011.

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2003 Infiniti G35 Reviews

Rated
based on 2 customer reviews
this is a good car very nice
A good car

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