2003 INFINITI FX35

Here is a comprehensive list of common issues and complaints encountered by owners of the 2003 INFINITI FX35, categorized by major components. The 2003 INFINITI FX35 is a sporty crossover SUV that was well-received for its unique styling and performance. It came standard with a 3.5L V6 engine producing 280 horsepower and 270 lb-ft of torque, paired with a 5-speed automatic transmission. Some owners appreciate its sporty handling, comfortable seats, and distinctive look. However, common complaints often revolve around reliability issues, particularly with the suspension and electrical systems, as well as higher repair costs compared to other vehicles in its class. A 4.5L V8 (FX45 model) was also available, but this response will focus on the FX35.

Engine

3.5L VQ35DE V6

• Timing Chain Tensioner Failure
  • Description/Symptoms: Rattling noise, especially on startup. Can lead to engine damage if not addressed.
  • Solution: Replace the timing chain tensioner.
  • Estimated Cost to Fix: $800 - $1500+
  • Recalls: None Found
• Camshaft Position Sensor Failure
  • Description/Symptoms: Check engine light, rough running, stalling.
  • Solution: Replace the camshaft position sensor.
  • Estimated Cost to Fix: $150 - $400
  • Recalls: None Found
• Oil Leaks
  • Description/Symptoms: Visible oil leaks, burning oil smell, low oil level. Common leak areas include valve cover gaskets and oil pan gasket.
  • Solution: Replace the leaking gaskets.
  • Estimated Cost to Fix: $200 - $600+ (depending on the location of the leak)
  • Recalls: None Found

Transmission

5-Speed Automatic

• Valve Body Issues
  • Description/Symptoms: Harsh shifting, slipping, delayed engagement.
  • Solution: Replace or rebuild the valve body. In some cases, a complete transmission replacement may be necessary.
  • Estimated Cost to Fix: $500 - $3000+ (depending on the repair needed)
  • Recalls: None Found

Suspension

• Front Strut Failure
  • Description/Symptoms: Bouncing, poor handling, noise over bumps.
  • Solution: Replace the front struts.
  • Estimated Cost to Fix: $400 - $800+
  • Recalls: None Found
• Rear Shock Absorber Failure
  • Description/Symptoms: Bouncing, poor handling, noise over bumps.
  • Solution: Replace the rear shock absorbers.
  • Estimated Cost to Fix: $300 - $600+
  • Recalls: None Found
• Control Arm Bushing Wear
  • Description/Symptoms: Clunking noises from the suspension, poor handling.
  • Solution: Replace the worn control arm bushings or the entire control arm.
  • Estimated Cost to Fix: $200 - $800+ (depending on which bushings/arms need replacement)
  • Recalls: None Found

Electrical

• Battery Drain
  • Description/Symptoms: Dead battery, difficulty starting. Can be caused by a parasitic draw from a faulty component.
  • Solution: Diagnose and repair the source of the parasitic draw.
  • Estimated Cost to Fix: $100 - $500+ (depending on the source of the drain)
  • Recalls: None Found
• Window Motor Failure
  • Description/Symptoms: Window not operating properly.
  • Solution: Replace the window motor.
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found
• Alternator Failure
  • Description/Symptoms: Battery light on, dim headlights, difficulty starting, stalling.
  • Solution: Replace the alternator.
  • Estimated Cost to Fix: $300 - $600+
  • Recalls: None Found

Exterior

• Liftgate Support Failure
  • Description/Symptoms: Liftgate will not stay open.
  • Solution: Replace the liftgate supports.
  • Estimated Cost to Fix: $100 - $300
  • Recalls: None Found

Interior

• Navigation System Failure
  • Description/Symptoms: The screen turns on and off randomly.
  • Solution: Replacing navigation system.
  • Estimated Cost to Fix: $100 - $1500
  • Recalls: None Found

Summary

The 2003 INFINITI FX35, while appreciated for its styling and performance, has several common issues. Engine issues such as timing chain tensioner failure and oil leaks can be costly to repair. Transmission problems like valve body issues can also lead to significant expenses. Suspension wear, particularly with struts, shocks, and control arm bushings, contributes to ride and handling concerns. Electrical issues, including battery drain and window motor failure, add to the list of potential headaches. Overall, owners should be prepared for moderate to high repair costs when maintaining this vehicle.