2004 INFINITI FX35

The 2004 INFINITI FX35 is a luxury crossover SUV known for its sporty handling, distinctive styling, and powerful engine. It came equipped with a 3.5L V6 engine (VQ35DE) producing approximately 280 horsepower and 270 lb-ft of torque. Some owners appreciate its aggressive looks and fun driving experience, while others find the ride a bit stiff and the fuel economy disappointing. Common complaints also revolve around the aging electronics and some known mechanical issues. The FX45 was also available, equipped with a 4.5L V8.

Engine

3.5L V6 (VQ35DE)

• Timing Chain Tensioner Failure
  • Description/Symptoms: Rattling noise upon startup, especially when cold. Can lead to timing chain failure and engine damage if not addressed.
  • Solution: Replace the timing chain tensioner and timing chain.
  • Estimated Cost to Fix: $1,000 - $2,000+
  • Recalls: None Found
• Oil Consumption
  • Description/Symptoms: The engine consumes oil at a higher-than-normal rate, requiring frequent top-offs between oil changes.
  • Solution: In severe cases, engine rebuild or replacement may be necessary. More frequently, monitoring oil levels and using a thicker oil can mitigate the issue.
  • Estimated Cost to Fix: $100 - $4,000+
  • Recalls: None Found
• Camshaft Position Sensor Failure
  • Description/Symptoms: Engine stalling, rough idling, check engine light illumination.
  • Solution: Replace the camshaft position sensor.
  • Estimated Cost to Fix: $100 - $300+
  • Recalls: None Found

Transmission

• No Issues Found

Suspension

• Front Strut Failure
  • Description/Symptoms: Clunking noises from the front suspension, bouncy ride, poor handling.
  • Solution: Replace the front struts.
  • Estimated Cost to Fix: $400 - $800+
  • Recalls: None Found
• Rear Air Suspension Leaks (If Equipped)
  • Description/Symptoms: Vehicle sagging in the rear, compressor running constantly, failure of the air suspension system.
  • Solution: Replace the air springs, compressor, or both.
  • Estimated Cost to Fix: $500 - $1500+
  • Recalls: None Found

Electrical

• Battery Drain
  • Description/Symptoms: Battery draining overnight or within a few days of being parked.
  • Solution: Diagnose and repair the source of the parasitic draw. Common causes include faulty door actuators, the radio, or the Body Control Module (BCM).
  • Estimated Cost to Fix: $100 - $500+ (depending on the cause)
  • Recalls: None Found
• Door Actuator Failure
  • Description/Symptoms: Door not locking or unlocking properly, or not responding to the key fob or interior switch.
  • Solution: Replace the faulty door actuator.
  • Estimated Cost to Fix: $200 - $400+ per door.
  • Recalls: None Found
• Fuel Gauge Inaccuracy
  • Description/Symptoms: Fuel gauge showing incorrect fuel levels, sometimes leading to running out of gas unexpectedly.
  • Solution: Replace the fuel level sensor.
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found

Exterior

• Liftgate Strut Failure
  • Description/Symptoms: Liftgate not staying open on its own, requiring manual support.
  • Solution: Replace the liftgate struts.
  • Estimated Cost to Fix: $100 - $200+
  • Recalls: None Found

Interior

• Navigation System Failure
  • Description/Symptoms: Navigation system screen not working, system freezing, or inaccurate GPS data.
  • Solution: Repair or replace the navigation unit. However, due to the age of the system, repair options are limited and replacement units may be difficult to find. Aftermarket solutions might be necessary.
  • Estimated Cost to Fix: $100 - $500+, or replacement with a modern aftermarket system.
  • Recalls: None Found

Summary

The 2004 INFINITI FX35 is a stylish SUV with some known issues primarily related to its aging components. The timing chain tensioner issue on the 3.5L V6 is a serious concern that can lead to costly engine repairs. Electrical issues, such as battery drains and door actuator failures, are also relatively common. Suspension problems, especially with the air suspension (if equipped), can add to the cost of ownership. Overall, while the FX35 offers a sporty driving experience, potential buyers should be aware of these potential issues and factor them into the purchase price and maintenance budget. The severity of the issues can range from minor inconveniences to major repairs costing several thousand dollars.