2014 GMC Yukon Problems: 2 Issues Every Owner Should Know

2014 GMC Yukon Problems: 2 Issues Every Owner Should Know | Au7o

All 2 Known Issues

Filter:

Community Reported

1,480 owners

On the 2007-2020 GMC Yukon, 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 damage. This is the single most reported mechanical failure on GMT900 (2007-2014) and K2XX (2015-2020) Yukon models. GM issued TSB 18-NA-077 acknowledging the issue. Yukon models used as daily drivers with lots of highway cruising (where AFM activates most) are most susceptible. The VLOM (Valve Lifter Oil Manifold) must also be replaced as it controls oil flow to AFM lifters.

This issue also affects: Citroën C3, Hyundai Santa Fe, Hyundai Tucson

Common Symptoms

Misfire codes P0300, P0301, P0304, P0306, P0307
Engine tick or tap at idle that worsens with load
Rough idle or engine vibration
Check engine light
Reduced engine power / limp mode
Metal debris in oil (confirmed on drain plug inspection)
Vibration between 30-55 mph during V4 deactivation mode

How to Fix

Replace all 16 lifters, VLOM (GM 12639516), and inspect camshaft lobes. AFM delete kit (Texas Speed or BTR) permanently eliminates the system. Range Technology AFM Disabler RA003B prevents AFM activation as a preventive measure. Change oil every 5,000 miles with Dexos1 Gen 2 full synthetic to protect lifters.

What Owners Are Using

Parts and tips from 1,480+ owners who fixed this issue

UpgradeGM 12639516 VLOM (Valve Lifter Oil Manifold) — must be replaced alongside all 16 lifters. The VLOM contains internal passages that feed oil to the AFM lifters; a worn VLOM with a new set of lifters will cause the new lifters to fail again within 20,000-30,000 miles. This is the most commonly skipped component in incomplete lifter repairs on YukonXLForum.com forum threads. (GM OEM #12639516)
View on Amazon
UpgradeRange Technology AFM Disabler RA003B — OBD-II plug-in device that prevents AFM engagement entirely on 2007-2020 Yukon 5.3L/6.2L. No tune required, installs in 30 seconds. Install this immediately on any used Yukon purchase as a ~$300 insurance policy against a $6,000+ lifter job. For 2021+ Yukon with DFM, use Range RA003 (DFM/AFM compatible version). (Range Technology #RA003B)
View on Amazon
NoteA collapsed AFM lifter bends its pushrod within seconds of continued engine operation. A bent pushrod then damages the corresponding camshaft lobe — turning a $3,500-5,000 lifter replacement into a $7,000-8,000 full valvetrain rebuild. The moment you hear rhythmic ticking on cylinder deactivation cylinders (1, 4, 6, 7), stop driving and have the engine diagnosed. Do NOT mask the tick with thicker oil.

Typical repair cost:$3,500 - $8,000

Research This Issue

1,480+ owners have reported this issue

Google Reddit YouTube NHTSA

Community Reported

High Confidence1,480 reportsLast reported by owners Feb 2026Reviewed Feb 2026

Community Reported

720 owners

On the 2007-2020 GMC Yukon, 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 overnight. The compressor burns out from running continuously to compensate for air spring leaks. Replacing OEM components and having them fail again is common — many owners convert to passive coil springs. Same system as Chevy Tahoe/Suburban and Escalade.

This issue also affects: Cadillac Escalade, Chevrolet Express, Chevrolet Silverado 1500

Common Symptoms

Rear of vehicle sagging overnight or after sitting
Compressor running continuously
SERVICE RIDE CONTROL or AIR SUSPENSION message
Bouncy or harsh ride quality
One corner lower than others
Compressor fails to raise vehicle

How to Fix

Replace air springs and compressor (Arnott P-2793 compressor). Or install Arnott C-2835 / Strutmasters conversion kit to permanently eliminate air suspension with coil springs plus electronic bypass module. Conversion kits cost $400-700 and eliminate future air suspension failures.

What Owners Are Using

Parts and tips from 720+ owners who fixed this issue

UpgradeArnott P-2793 OE-quality replacement air suspension compressor assembly for 2007-2020 Yukon/Yukon XL — includes compressor, air dryer, relay, and all fittings. Arnott provides a lifetime warranty and this unit is far more reliable than the OEM Hitachi compressor. Costs $250-320 and installs in 45 minutes. This is the most-recommended compressor replacement on YukonXLForum.com. (Arnott #P-2793)
View on Amazon
UpgradeStrutmasters GMC-RS2-A rear coil spring conversion kit for 2007-2014 Yukon/Yukon XL — permanently converts from air to coil springs with an electronic module that cancels the compressor fault codes. Many owners report this as the best long-term value: $350-450 one-time cost eliminates recurring $800-1,500 air suspension repairs every 50,000 miles. (Strutmasters #GMC-RS2-A)
View on Amazon
TipBefore replacing the compressor, test both rear air springs by spraying soapy water on the air bag membrane while the compressor is running. Bubbling indicates a torn bag — replacing only the compressor on leaking bags will burn the new compressor out within weeks. Both rear air springs and the compressor should typically be replaced as a set if any component has failed.

Typical repair cost:$600 - $3,200

Research This Issue

720+ owners have reported this issue

Google Reddit YouTube NHTSA

Community Reported

High Confidence720 reportsLast reported by owners Feb 2026Reviewed Feb 2026

⚠️NHTSA Recalls8 recalls

SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM

General Motors LLC (GM) is recalling certain 2018 Cadillac Escalade, Chevrolet Silverado 1500 and Tahoe, GMC Sierra 1500 and Yukon vehicles equipped with either a 5.3L or 6.2L V8 engine. The output of the mechanical vacuum pump can decrease over time, decreasing the amount of vacuum/power brake assist.

Campaign #20V60300001/10/2020

SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM

General Motors LLC (GM) is recalling certain 2015-2017 Cadillac Escalade, 2014-2018 Chevrolet Silverado, GMC Sierra, 2015-2018 Chevrolet Suburban, Tahoe, GMC Yukon vehicles. The amount of vacuum created by the vacuum pump may decrease over time.

Campaign #19V64500006/09/2019

SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:WHEEL SPEED SENSOR/TONE RING

General Motors LLC (GM) is recalling certain 2015-2020 Chevrolet Suburban, Tahoe, and GMC Yukon, and 2014-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles equipped with a 5.3-liter engine, a 3.08-ratio rear axle and four-wheel drive. If a wheel-speed sensor fails, while the vehicle is traveling between 41 and 60 mph in four-wheel or automatic mode, the Electronic-Brake Control Module (EBCM) software may activate the driveline-protection system.

Campaign #19V76100024/10/2019

AIR BAGS:FRONTAL

General Motors LLC (GM) is recalling certain model year 2014-2016 Buick Lacrosse and Chevrolet Spark EV, Caprice PPV and SS vehicles, 2014-2017 Buick Encore and Chevrolet Corvette, Silverado 1500 and GMC Sierra 1500 vehicles, 2015-2016 Cadillac Escalade and Escalade ESV, Chevrolet Tahoe, Trax, Suburban and Silverado 2500 and 3500 and GMC Yukon and Yukon XL vehicles, and 2015-2017 GMC Sierra HD 2500 and 3500 vehicles. While being previously remedied for recall 16V-651, the affected vehicles may not have received the complete software update necessary to remedy the recall condition. Without the update, certain driving conditions may cause the air bag sensing and diagnostic module (SDM) software to activate a diagnostic test. During this test, deployment of the frontal air bags and the seat belt pretensioners would not occur in the event of a crash.

Campaign #17V43700010/07/2017

AIR BAGS:FRONTAL

General Motors LLC (GM) is recalling certain model year 2015-2017 Chevrolet Silverado 2500 HD, 3500 HD, Tahoe, Suburban, GMC Sierra 2500 HD and 3500 HD, GMC Yukon, GMC Yukon XL, Cadillac Escalade and Cadillac Escalade ESV vehicles and 2014-2017 Chevrolet Corvette, Silverado 1500, Trax, Caprice Police Pursuit Vehicle, GMC Sierra 1500, Buick Encore, and 2014-2016 Buick Lacrosse, Chevrolet Spark EV and SS vehicles. In the affected vehicles, certain driving conditions may cause the air bag sensing and diagnostic module (SDM) software to activate a diagnostic test. During this test, deployment of the frontal air bags and the seat belt pretensioners would not occur in the event of a crash.

Campaign #16V65100008/09/2016

+ 3 more recalls. Check all on NHTSA.gov

Enter your VIN at NHTSA.gov to check recalls specific to your vehicle.

Frequently Asked Questions

What are the most common GMC Yukon problems?

According to Au7o's analysis of 2,200+ owner reports, the 2014-2014 GMC Yukon has 2 documented issues. The most frequently reported are: AFM/DOD Lifter Collapse and Valvetrain Failure, Autoride Air Suspension Compressor and Air Bag Failure. Of these, 1 is rated critical and should be addressed promptly.

Is the GMC Yukon reliable?

The 2014-2014 GMC Yukon has 2 known issues documented across 2,200+ owner reports. 1 issue is rated critical: AFM/DOD Lifter Collapse and Valvetrain Failure. 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 $600 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 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.

2014 GMC Yukon Problems: 2 Issues Every Owner Should Know

All 2 Known Issues

2007-2020 GMC Yukon: AFM/DOD Lifter Collapse and Valvetrain Failure#

Common Symptoms

How to Fix

What Owners Are Using

Research This Issue

2007-2020 GMC Yukon: Autoride Air Suspension Compressor and Air Bag Failure#

Common Symptoms

How to Fix

What Owners Are Using

Research This Issue

Other GMC Models

Frequently Asked Questions

What are the most common GMC Yukon problems?

Is the GMC Yukon reliable?

How much does it cost to fix common GMC Yukon problems?

What is the 2007-2020 GMC Yukon AFM/DOD Lifter Collapse and Valvetrain Failure?

What is the 2007-2020 GMC Yukon Autoride Air Suspension Compressor and Air Bag Failure?