2018 GMC Yukon

Introduction:

The 2018 GMC Yukon is a full-size SUV with a powerful 5.3L V8 engine, generating 355 horsepower and 383 lb-ft of torque. It offers a comfortable and spacious interior, making it a popular choice for families and those seeking ample cargo space. The Yukon also boasts impressive towing capabilities and a variety of trims and features to cater to diverse needs. However, like any vehicle, it has some reported issues that should be considered before making a purchase decision.

Engine

• 5.3L V8
  • Fuel Injector Failure:
    • Description/Symptoms: The fuel injector becomes clogged or fails, causing hesitation or misfires, especially during acceleration.
    • Solution: Replace the faulty fuel injector.
    • Estimated Cost to Fix: $300 - $500+
    • Recalls: None Found
  • Intake Valve Deposits:
    • Description/Symptoms: Carbon deposits build up on the intake valves, reducing engine efficiency and power.
    • Solution: Clean the intake valves with a specialized solution or walnut blasting.
    • Estimated Cost to Fix: $500 - $800+
    • Recalls: None Found
  • Active Fuel Management System Failure:
    • Description/Symptoms: The AFM system, which deactivates cylinders at low loads to improve fuel economy, fails, leading to rough idling and decreased power.
    • Solution: Repair or replace the AFM solenoid or related components.
    • Estimated Cost to Fix: $500 - $1,000+
    • Recalls: None Found

Transmission

• 6-Speed Automatic (6L80)
  • Shift Solenoid Failure:
    • Description/Symptoms: The shift solenoid fails, preventing the transmission from shifting properly, resulting in delayed shifts or slipping.
    • Solution: Replace the faulty shift solenoid.
    • Estimated Cost to Fix: $300 - $600+
    • Recalls: None Found
  • Torque Converter Clutch Failure:
    • Description/Symptoms: The torque converter clutch wears out or fails, causing shuddering, slipping, or loss of power during acceleration.
    • Solution: Replace the torque converter clutch.
    • Estimated Cost to Fix: $1,000 - $2,000+
    • Recalls: None Found
• 10-Speed Automatic (10LXX)
  • No Issues Found

Suspension

• Air Suspension System Failure:
  • Description/Symptoms: The air suspension compressor fails or leaks, causing the vehicle to sag or ride unevenly.
  • Solution: Replace the defective compressor or repair the leaks.
  • Estimated Cost to Fix: $1,000 - $2,000+
  • Recalls: None Found

Electrical

• Electrical Short in Rear Liftgate:
  • Description/Symptoms: A short occurs in the rear liftgate wiring harness, causing electrical malfunctions, including non-functioning liftgate, taillight failure, or backup camera issues.
  • Solution: Replace the faulty wiring harness.
  • Estimated Cost to Fix: $500 - $800+
  • Recalls: NHTSA Campaign Number 18V708
• Battery Drain:
  • Description/Symptoms: The vehicle’s battery drains prematurely, even when the vehicle is turned off.
  • Solution: Diagnose and repair the source of the electrical drain, such as a faulty module or parasitic draw.
  • Estimated Cost to Fix: Varies depending on the cause
  • Recalls: None Found

Exterior

• Roof Rack Crossbars Detaching:
  • Description/Symptoms: The crossbars on the roof rack loosen or detach, creating a potential hazard.
  • Solution: Retighten or replace the crossbars and ensure they are securely attached.
  • Estimated Cost to Fix: $0 - $200+
  • Recalls: NHTSA Campaign Number 19V347

Interior

• Climate Control Issues:
  • Description/Symptoms: The climate control system fails to operate properly, resulting in insufficient heating or cooling.
  • Solution: Diagnose and repair the faulty component, such as the HVAC module, actuators, or sensors.
  • Estimated Cost to Fix: $300 - $800+
  • Recalls: None Found
• Rear Seat Entertainment System Malfunction:
  • Description/Symptoms: The rear seat entertainment system malfunctions, experiencing issues with the screen, audio, or connectivity.
  • Solution: Replace or repair the faulty components or software.
  • Estimated Cost to Fix: $500 - $1,000+
  • Recalls: None Found

Summary:

The 2018 GMC Yukon offers a combination of power, space, and comfort, but it has its share of issues that potential buyers should be aware of. Engine issues, transmission problems, and electrical malfunctions are the most commonly reported, with some ranging from minor annoyances to potentially costly repairs. While the severity and cost of these issues vary, it is important to consider them when making a purchase decision.