Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 GMC Yukon AT4FACTORY OEM SERVICE PROCEDURE
Removal & Installation
WARNING: This page is about the Yukon Denali, 3.0L Eng VIN T, 4WD, which is a different variant/trim than selected.
Includes: R&I only those components necessary for the removal of the complete Engine Assembly. DOES NOT include transfer components or tune Engine.| Applies To | Note | Standard Hours | Warranty Hours | Skill Level |
|---|---|---|---|---|
| 3.0L Eng,4WD, w/Air Suspension | Includes: R&I Wiper Link Assembly & Cowl Top Panel. Includes: R&I Fender Liners. Includes: R&I Front Bumper Cover and Headlamp Assemblies. DOES NOT include Headlamp adjustment. Includes: R&I Cooling Module. Includes: R&I Catalytic Converters. Includes: R&I Charge Air Cooler. Includes: R&I Alternator. Includes: R&I Starter Assembly. Includes: R&I Air Conditioning Compressor. Includes: R&I Air Cleaner. Includes: R&I Battery and Tray. Includes: Drain and refill Cooling System. Includes: Drain and refill Engine Oil. Includes: Perform Filter Life Monitor Reset procedure. DOES NOT include Air Conditioning System recover, evacuate and recharge. | 26.3 | C | |
| 3.0L Eng,4WD, w/o Air Suspension | Includes: R&I Wiper Link Assembly & Cowl Top Panel. Includes: R&I Fender Liners. Includes: R&I Front Bumper Cover and Headlamp Assemblies. DOES NOT include Headlamp adjustment. Includes: R&I Cooling Module. Includes: R&I Catalytic Converters. Includes: R&I Charge Air Cooler. Includes: R&I Alternator. Includes: R&I Starter Assembly. Includes: R&I Air Conditioning Compressor. Includes: R&I Air Cleaner. Includes: R&I Battery and Tray. Includes: Drain and refill Cooling System. Includes: Drain and refill Engine Oil. Includes: Perform Filter Life Monitor Reset procedure. DOES NOT include Air Conditioning System recover, evacuate and recharge. | 26.1 | C | |
| Additional Procedure: ENGINE ASSEMBLY: Removal & Installation: | ||||
| Where Skid Plate interferes add | 0.2 | C | ||
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.