2007 INFINITI FX45

Introduction

The 2007 INFINITI FX45 is a mid-size luxury SUV renowned for its sleek design, powerful engine, and advanced features. It is available with a single engine and transmission option:

• 4.5L V8 engine producing 320 horsepower and 335 lb-ft of torque
• 5-speed automatic transmission

Engine

4.5L V8

• Knocking or tapping noise: Caused by worn valve lifters.
  • Solution: Replace the valve lifters.
  • Estimated Cost to Fix: $800 - $1,200+
  • Recalls: None Found
• Intake manifold gasket leak: Can lead to coolant leaks and overheating.
  • Solution: Replace the intake manifold gasket.
  • Estimated Cost to Fix: $500 - $800+
  • Recalls: None Found
• Timing chain rattle: Occurs at startup or acceleration due to a faulty timing chain tensioner.
  • Solution: Replace the timing chain tensioner and timing chain.
  • Estimated Cost to Fix: $1,500 - $2,000+
  • Recalls: None Found

Transmission

5-Speed Automatic

• Hesitation or slipping during gear changes: May indicate a worn or faulty transmission solenoid.
  • Solution: Replace the transmission solenoid.
  • Estimated Cost to Fix: $400 - $600+
  • Recalls: None Found
• Harsh or delayed upshifts: Can be caused by a worn or contaminated transmission filter.
  • Solution: Change the transmission filter and fluid.
  • Estimated Cost to Fix: $200 - $300+
  • Recalls: None Found

Suspension

• Rear air suspension failure: Can cause the rear of the vehicle to sag or bounce excessively.
  • Solution: Replace the faulty air bag or compressor.
  • Estimated Cost to Fix: $1,000 - $1,500+ per air bag
  • Recalls: None Found
• Front strut mount bearing noise: Makes a clunking or rattling sound when turning or hitting bumps.
  • Solution: Replace the strut mount bearing.
  • Estimated Cost to Fix: $400 - $600+ per strut
  • Recalls: None Found

Electrical

• Power window failure: Can be caused by faulty window motors or switches.
  • Solution: Replace the faulty window motor or switch.
  • Estimated Cost to Fix: $200 - $400+ per window
  • Recalls: None Found
• Headlight condensation: Buildup of moisture inside the headlight assemblies.
  • Solution: Replace the faulty headlight assembly or reseal the existing one.
  • Estimated Cost to Fix: $400 - $600+ per headlight
  • Recalls: None Found

Exterior

• Rear spoiler vibration: Can occur at high speeds due to a loose or damaged spoiler attachment.
  • Solution: Tighten the spoiler attachment or replace the spoiler if damaged.
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found

Interior

• Navigation system failure: Can result in a black screen or inaccurate navigation.
  • Solution: Update the navigation software or replace the navigation module.
  • Estimated Cost to Fix: $500 - $800+
  • Recalls: None Found
• HVAC system noise: May indicate a faulty blower motor or blend door actuator.
  • Solution: Replace the faulty component.
  • Estimated Cost to Fix: $400 - $600+
  • Recalls: None Found

Summary

The 2007 INFINITI FX45 is generally a reliable vehicle with a proven track record. However, it is not without its potential issues. The most severe and costly problems to watch out for include knocking or tapping engine noise, intake manifold gasket leaks, timing chain rattle, and rear air suspension failure. While some electrical problems and interior issues can be inconvenient, they are typically less severe and expensive to fix. Overall, the FX45 offers a rewarding driving experience, but it is advisable to factor in the potential repair costs associated with these known issues.