2005 INFINITI QX56

2005 INFINITI QX56

The 2005 INFINITI QX56 is a full-size luxury SUV that was praised for its powerful engine, spacious interior, and advanced safety features. It was powered by a 5.6-liter V8 engine that generated 315 horsepower and 390 lb-ft of torque, paired with a 5-speed automatic transmission. However, the QX56 also had its share of issues, which we’ll delve into in detail below.

Engine

5.6L V8

• Intake Manifold Gasket Failure:
  • Description/Symptoms: Coolant leaking from the intake manifold causing overheating and poor engine performance.
  • Solution: Replace intake manifold gaskets.
  • Estimated Cost to Fix: $500 - $1,000+
  • Recalls: None Found
• Valve Cover Gasket Leak:
  • Description/Symptoms: Oil leaking from the valve covers, causing engine noise and decreased performance.
  • Solution: Replace valve cover gaskets.
  • Estimated Cost to Fix: $300 - $500+
  • Recalls: None Found

Transmission

5-Speed Automatic

• No Issues Found

Suspension

• Rear Air Suspension Failure:
  • Description/Symptoms: Airbags in the rear suspension deflating, causing uneven ride height and decreased handling.
  • Solution: Replace air suspension airbags and/or compressor.
  • Estimated Cost to Fix: $1,000 - $2,000+
  • Recalls: None Found
• Strut Mount Bearing Failure:
  • Description/Symptoms: Knocking or clunking noise when turning, bumpy ride.
  • Solution: Replace strut mount bearings.
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found

Electrical

• Battery Drain:
  • Description/Symptoms: Battery draining prematurely, requiring frequent jump-starts.
  • Solution: Replace faulty alternator or other electrical components causing the drain.
  • Estimated Cost to Fix: $500 - $1,000+
  • Recalls: None Found
• Dashboard Circuit Board Failure:
  • Description/Symptoms: Dashboard gauges and lights malfunctioning or flickering.
  • Solution: Replace dashboard circuit board.
  • Estimated Cost to Fix: $300 - $500+
  • Recalls: None Found

Exterior

• Rear Hatch Struts Failure:
  • Description/Symptoms: Rear hatch not opening or staying open properly.
  • Solution: Replace rear hatch struts.
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found

Interior

• Sunroof Wind Deflector Failure:
  • Description/Symptoms: Sunroof wind deflector detaching or rattling during operation.
  • Solution: Replace sunroof wind deflector.
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found
• Rear Seat Belt Mechanism Failure:
  • Description/Symptoms: Rear seat belts not retracting or releasing properly.
  • Solution: Inspect and repair rear seat belt mechanisms.
  • Estimated Cost to Fix: $100 - $300+
  • Recalls: None Found

Summary

The 2005 INFINITI QX56 had several issues that owners commonly reported. The most severe and expensive issues were related to the engine, including intake manifold gasket failure and valve cover gasket leaks. Other notable issues included rear air suspension failure and battery drain. While some of these issues could be relatively minor and inexpensive to fix, others could lead to costly repairs. Potential buyers should be aware of these issues before purchasing a used 2005 INFINITI QX56.