What are the most common GMC Yukon problems?
According to Au7o's analysis of 3,560+ owner reports, the 2019-2019 GMC Yukon has 4 documented issues. The most frequently reported are: AFM/DOD Lifter Collapse and Valvetrain Failure, 8L90 8-Speed Torque Converter Shudder, Autoride Air Suspension Compressor and Air Bag Failure. Of these, 2 are rated critical and should be addressed promptly.
Is the GMC Yukon reliable?
The 2019-2019 GMC Yukon has 4 known issues documented across 3,560+ owner reports. 2 issues are rated critical: AFM/DOD Lifter Collapse and Valvetrain Failure and 8L90 8-Speed Torque Converter Shudder. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common GMC Yukon problems?
Repair costs for known GMC Yukon issues range from $150 to $8,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, AFM/DOD Lifter Collapse and Valvetrain Failure, typically costs $3,500-$8,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2007-2020 GMC Yukon AFM/DOD Lifter Collapse and Valvetrain Failure?
The GMC Yukon 5.3L (L83, LC9, LMG) and 6.2L (L94, L86) V8 engines use Active Fuel Management (AFM) cylinder deactivation. The special collapsible AFM lifters on cylinders 1, 4, 6, and 7 fail prematurely, causing misfires, engine ticking, rough idle, and potential catastrophic dam… Repairs typically run $3,500-$8,000. Severity: high.
What is the 2015-2020 GMC Yukon 8L90 8-Speed Torque Converter Shudder?
The 8L90 8-speed automatic transmission in 2015-2020 Yukon and Yukon XL suffers from widespread torque converter lock-up clutch shudder at light throttle between 25-50 mph. The clutch friction material degrades and contaminates the transmission fluid, causing the shudder to worse… Repairs typically run $150-$4,500. Severity: high.
What is the 2007-2020 GMC Yukon Autoride Air Suspension Compressor and Air Bag Failure?
Yukon and Yukon XL models equipped with Autoride (RPO Z55) or electronic suspension feature rear air springs and a compressor that commonly fail between 80,000-130,000 miles. The air spring bags crack from age and temperature cycling, causing the rear of the vehicle to sag overni… Repairs typically run $600-$3,200. Severity: medium.
What is the 2015-2025 GMC Yukon Power Running Board Motor Failure and Corrosion?
The power retractable running boards available on 2015+ Yukon and Yukon XL are a common failure point. The electric motors and gearboxes corrode and seize, especially in salt-belt states. Boards get stuck in the out position (creating a road-clearance hazard and trip risk) or ref… Repairs typically run $400-$2,500. Severity: medium.
