2002 Infiniti Fx35 problems

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The Infiniti QX70, formerly called the Infiniti FX until 2013, is a compact luxury crossover SUV produced by the Nissan-owned Infiniti luxury vehicle brand between 2002 and 2017. The FX replaced the QX4 as Infiniti's mid-size SUV. It shares the same FM platform as the rear-wheel drive Nissan 370Z, and it "made no claims of climbing mountains." Rather, its aggressive shape promised style and quick handling. The similarly sized Nissan Murano is based on the same D platform as the front-wheel drive Nissan Altima. The FX does not have a Nissan-branded equivalent and is not sold in Japan.

The FX introduced its second generation for the 2009 model year as the FX35 and FX50.

First generation (S50; 2003)

The nameplates FX35 and FX45 refer to the two available engines. The FX35 is available in two drivetrains, the RWD and the AWD, which are both fitted to a dual overhead cam 3.5-liter 24-valve V6 VQ35DE gasoline engine, with aluminum-alloy block and heads, electronically controlled throttle system, and low-friction molybdenum-coated pistons that makes use of the continuous variable valve timing which in part optimizes the opening of intake valves. This is also coupled with an electronically controlled super-wide ratio five-speed automatic with a manumatic shift mode that includes the option of sequentially selected manual gearshifts and downshift rev-matching.

The AWD FX45 incorporates a 4.5 L (4,494 cc) 32-valve V8 DOHC VK45DE gasoline engine with four valves per cylinder, microfinished camshafts with aluminum-alloy block and heads, low-friction molybdenum-coated pistons, titanium intake and exhaust valves, modular cylinder heads, microfinished crankshaft, lightweight pistons, super-silent single stage cam drive chain, and a Continuously Variable Valve Timing Control System that optimizes opening of intake valves. Development began in 1999 under newly appointed CEO Carlos Ghosn's NRP. Design work was completed in rapid succession in 2000, for late 2002 production. Designed prior to that, earlier on in 2000 under the "Bionic Cheetah" theme, the 2001 Infiniti FX45 Concept was introduced at the NAIAS in January 2001. From mid-2001, a new concept based on the production design was developed and completed in late 2001. Sketches were first released in late November 2001. The second-generation 2002 FX45 Concept was introduced in January 2002 at the NAIAS '02 as a thinly-veiled production FX (S50) and planned production was announced for early 2003. In January 2003, the 2003 FX45 made its debut at the 2003 NAIAS and went on sale January 24, 2003.

In 2003 for the 2004 model, changes were the addition of a standard eight-way power front passenger seat that replaced the previous four-way design, the availability of aluminum roof rails and chrome-plated 20-inch wheels. Also new were a dark silver metallic finish for the 20-inch wheels (non-chrome-plated), the addition of a standard HVAC filter for all models and the addition of a new Snow-Mode function.

In September 2004 for the 2005 model year, the FX range received enhancements such as a lane departure warning (LDW) system that helps alert drivers to an unintended movement of the vehicle out of a designated traffic lane. Infiniti's system monitored the lane markings to alert passengers via an audible buzzer that the driver is drifting unintentionally. The LDW system, which utilizes a small camera, speed sensor, an indicator, and an audible warning buzzer, was offered on models. The 2005 Infiniti FX was the first passenger vehicle to offer a lane departure warning system in the United States market. In addition to LDW, the 2005 Infiniti FX range was now equipped with standard roof-mounted curtain supplemental curtain airbags with rollover protection for front and rear outboard seat occupants.

Other changes included the addition of a dark chrome grille, headlight, and clear taillight accents to the FX45 (also available as part of the V6 Sport Package on FX35 models), a new key fob design for the Infiniti Intelligent Key system, and two new exterior colors, Sapphire and Sheer Platinum. Interior changes included a new standard etched aluminum trim.

Total 2007 sales of the FX45 were 1,598 units, about a tenth of the FX35s.

2002 Infiniti Fx35

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Common 2002 Infiniti Fx35 problems

The Infiniti FX35, a luxury midsize SUV, is known for its competent engine and smooth performance. However, like any vehicle, it can develop problems over time. Here are some common issues with the 2002 Infiniti FX35 based on complaints from owners:

  1. Bearing Failure: Some owners have reported bearing failure in their FX35s. This issue can result in excessive cranking, noise, or even complete engine failure. Regular maintenance, including checking and replacing the bearings as needed, can help prevent this problem.
  2. Fuel Leaks: Fuel leaks are another common issue with the 2002 Infiniti FX35. These leaks can occur in various parts of the fuel system, such as the fuel injectors, fuel pressure regulator, or fuel lines. Regular inspections and timely repairs can help prevent fuel leaks and the potential fire hazard they pose.
  3. Erratic Idling: Some FX35 owners have reported issues with erratic idling, where the engine revs up and down without any apparent cause. This issue can be caused by various factors, including vacuum leaks, faulty sensors, or issues with the throttle body. Regular maintenance and inspections can help identify and address these issues.
  4. Door Lock Problems: Some owners have reported issues with the door locks on their FX35s, including locks that don't work or doors that don't open or close properly. These issues can be caused by various factors, including faulty actuators, wiring problems, or issues with the door latch assembly. Timely repairs can help prevent these issues from becoming more serious.

While these issues can be concerning, it's important to note that the Infiniti FX35 has above-average reliability scores from RepairPal, with a score of 3.5 out of 5.0. With proper maintenance, this SUV can go over 200,000 miles without major repairs. However, like any vehicle, it's important to stay on top of regular maintenance and address any issues promptly to ensure the longevity and reliability of your FX35.

2002 Infiniti Fx35 engine

What is the major problem of INFINITI FX35?

Prematurely Worn-out Wheel Bearings

One of the most widely reported problems with the 2003-2012 Infiniti FX35 is its front wheel bearings, which are prone to sustaining premature wear and damage. The worn-out wheel bearings may cause an abnormal grinding noise at the front of your SUV at around 94,000 miles.

Is the INFINITI FX35 reliable?

The INFINITI FX35 Reliability Rating is 3.5 out of 5.0, which ranks it 4th out of 14 for luxury midsize SUVs. The average annual repair cost is $617 which means it has average ownership costs. While repairs are more common, these issues are less likely to be severe than with other cars.

Are INFINITI FX35 expensive to maintain?

Infiniti FX35 Repair and Maintenance Costs

The cost of a Infiniti FX35 service is at least $89.57 and at most $1127.70, with an average of $452.80.

What is the starting problem for INFINITI FX35?

The most common reasons an INFINITI FX35 won't start are a dead battery, an alternator problem, or failed starter.

2002 Infiniti Fx35 car problems categorized by type of issue

After analyzing all complaints sent to the NHTSA and researching popular Infiniti Fx35 problems, we found that the most common problems with these 2023 model year vehicles are:

  • Exterior lighting problems
  • Air bags problems
  • Fuel/propulsion system problems

The graph below shows statistics for all 2002 Infiniti Fx35 vehicle components and the number of complaints received.

2002 Infiniti Fx35 complaints

The NHTSA has received 1 complaints about various vehicle components related to the 2002 Infiniti Fx35.

2019-03-31

EXTERIOR LIGHTING,AIR BAGS,FUEL/PROPULSION SYSTEM PROBLEM

  • Date Of Incident: 2015-03-03
  • Crash: 1
  • VIN: JNRAS08W03X
  • Components: EXTERIOR LIGHTING,AIR BAGS,FUEL/PROPULSION SYSTEM
  • Summary: HELLO. MY CAR FALLS UNDER THE REVOCABLE COMPANY INFINITI ON THREE POINTS, BUT THE OFFICIAL DEALER DOES NOT WANT TO HELP ME. REFUSING TO REPLACE. NHTSA RECALL NUMBER 15V-287 NHTSA RECALL NUMBER 06V-328 NHTSA RECALL NUMBER 05V-555
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Additional sources

More sources of information about 2002 Infiniti Fx35 problems:

Infiniti FX35 Reliability and Common Problems - In The Garage with ...
Infiniti FX35 Reliability and Common Problems - In The Garage with ...
https://www.carparts.com/blog/infiniti-fx35-reliability-and-common-problems/

Jan 31, 2024 ... One of the most widely reported problems with the 2003-2012 Infiniti FX35 is its front wheel bearings, which are prone to sustaining premature ...

Common Problems with 2002 Infiniti QX4 SUV - Q&A
Common Problems with 2002 Infiniti QX4 SUV - Q&A
https://www.justanswer.com/nissan-infiniti/5l1ct-2002-infiniti-qx4-road-almost-feels-rocking-we-shocks.html

Sep 21, 2011 ... Infiniti Mechanic. Subaru and Nissan factory training. 1,211 satisfied customers. Having a stiff ride. Suspecting springs 2004 infiniti fx35.

Should I buy an Infiniti fx45 - Nissan Forum | Nissan Forums
Should I buy an Infiniti fx45 - Nissan Forum | Nissan Forums
https://forums.nicoclub.com/should-i-buy-an-infiniti-fx45-t497648.html

Jun 17, 2010 ... For the FX you will want to keep an eye out for oil consumption and dash board cracking/bubbling. However, Infiniti has addressed this issue ...

FX35 - Another poor 2005 infiniti fx35 overheating | Page 3 |
FX35 - Another poor 2005 infiniti fx35 overheating | Page 3 |
https://www.infinitiscene.com/threads/another-poor-2005-infiniti-fx35-overheating.36983/page-3

Aug 13, 2011 ... They fix it once and they don't see the same car back for cooling issues. The thermostat is the problem. It's my theory that it's failure, if ...

How many miles do you have on your FX? Any major problems ...
How many miles do you have on your FX? Any major problems ...
https://forums.nicoclub.com/how-many-miles-do-you-have-on-your-fx-any-major-problems-t485431.html

Mar 24, 2010 ... Some of the more expensive issues are: oil consumption, dash board bubbles/cracks, and premature wheel bearing failures. Aside from these issues ...

Other years of Infiniti Fx35

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Fx35 2003
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10

28

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Fx35 2004
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7

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Fx35 2005
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9

20

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Fx35 2006
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7

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Fx35 2007
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4

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Fx35 2008
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0

4

17

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2002 Infiniti Fx35 photo