GMC Yukon 2021-present 6.2L Engine Engine Specifications
GMC Yukon 2021-present

GMC Yukon 2021-present 6.2L Engine Specifications

Explore the detailed technical specifications of the 6.2L engine in the 2021-Present GMC Yukon. This guide covers engine performance, maintenance, and repair insights for automotive professionals and enthusiasts.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the 6.2L engine used in the 2021-Present GMC Yukon. It is designed to help users understand the engine's performance, features, and maintenance requirements. The document is organized into sections for easy navigation, with subsections breaking down key aspects of the engine. Use the search and navigation instructions to quickly find the information you need.

How to Use

Use the search functionality by typing keywords related to the 6.2L engine, such as 'horsepower' or 'torque,' in the search bar. This will highlight relevant sections and subsections for quick access.

Navigate through the document by clicking on the section titles in the table of contents. Each section contains subsections with detailed points about the 6.2L engine's specifications and features.

Key Specifications

Displacement

6.2 liters

Horsepower

420 hp

Torque

460 lb-ft

Fuel Efficiency

15 mpg city / 20 mpg highway

Towing Capacity

8,400 lbs

Available Specifications

Engine Performance

This section covers the performance metrics of the 6.2L engine, including horsepower, torque, and acceleration. It also includes details on fuel efficiency and towing capacity, making it a comprehensive guide for understanding the engine's capabilities.

Power and Torque
  • 420 horsepower @ 5600 rpm
  • 460 lb-ft of torque @ 4100 rpm
  • Direct injection technology for improved efficiency
  • Variable valve timing for optimal performance
  • Active Fuel Management for fuel savings
  • High-flow exhaust system
Fuel Efficiency
  • EPA-estimated 15 mpg city
  • EPA-estimated 20 mpg highway
  • EcoTec3 engine technology
  • Automatic start-stop feature
  • Premium fuel recommended for optimal performance
  • Fuel capacity of 24 gallons

Engine Design

This section delves into the design and engineering of the 6.2L engine, including its construction, materials, and advanced technologies. It highlights features that contribute to the engine's durability and performance.

Construction and Materials
  • Aluminum block and heads for reduced weight
  • Forged steel crankshaft for durability
  • Powdered metal connecting rods
  • High-strength aluminum pistons
  • Dual overhead camshafts (DOHC)
  • Hydraulic roller lifters
Advanced Technologies
  • Direct injection for precise fuel delivery
  • Variable valve timing for improved efficiency
  • Active Thermal Management system
  • Electronic throttle control
  • Oil-cooled piston jets
  • Dual-equal variable exhaust timing

Maintenance and Durability

This section provides information on maintaining the 6.2L engine, including recommended service intervals and durability features. It also covers warranties and common maintenance practices to ensure long-term reliability.

Maintenance Schedule
  • Oil change every 7,500 miles or 12 months
  • Engine air filter replacement every 30,000 miles
  • Spark plug replacement every 100,000 miles
  • Coolant flush every 150,000 miles
  • Regular inspection of belts and hoses
  • Transmission fluid change every 45,000 miles
Durability Features
  • Extended-life coolant
  • High-capacity cooling system
  • Corrosion-resistant materials
  • Sealed-for-life bearings
  • Robust engine mounts
  • Integrated oil cooler

Engine Specifications

Overview

Type
V8
Configuration
Naturally Aspirated
Platform
GM Small Block
Material
Aluminum Block and Heads
Location
Front Engine, Longitudinal

Dimensions

Displacement
6.2 liters (376 cubic inches)
Bore
103.25 mm (4.065 in)
Stroke
92 mm (3.622 in)
Length
692 mm (27.24 in)
Width
495 mm (19.49 in)
Height
660 mm (25.98 in)
Weight
205 kg (452 lbs)

Materials

Block
Cast Aluminum
Cylinder Heads
Aluminum
Pistons
Forged Aluminum
Crankshaft
Forged Steel
Connecting Rods
Forged Steel

Features

Performance
  • 420 horsepower at 5600 rpm
  • 460 lb-ft torque at 4100 rpm
  • Direct Fuel Injection
  • Variable Valve Timing
Fuel Efficiency
  • Active Fuel Management
  • Start/Stop Technology
  • Optimized Combustion Efficiency
Cooling
  • High-Flow Water Pump
  • Dual Thermostat System
  • Enhanced Radiator
Emissions
  • Low Friction Design
  • Advanced Catalytic Converters
  • E85 Flex Fuel Capability
Durability
  • Forged Internals
  • High-Strength Alloys
  • Robust Oil Circulation

Safety Features

Engine Protection
  • Oil Pressure Monitoring
  • Coolant Temperature Sensor
  • Knock Sensor
Emission Control
  • Closed-Loop Fuel System
  • Evaporative Emission Control
  • Exhaust Gas Recirculation

Comfort Features

Noise Reduction
  • Acoustic Engine Cover
  • Balanced Rotating Assembly
  • Precision Machined Components
Vibration Control
  • Hydraulic Engine Mounts
  • Dual Mass Flywheel
  • Harmonic Balancer

Accessories

intake System
  • High-Flow Air Filter
  • Cold Air Intake
  • Air Intake Resonator
Exhaust System
  • Stainless Steel Headers
  • Dual Exhaust
  • Active Exhaust Valve
Cooling System
  • Electric Cooling Fan
  • Oil Cooler
  • Transmission Cooler

Maintenance

Service interval
7500 miles or 6 months
Service Items
  • Oil and Filter Change
  • Air Filter Inspection
  • Spark Plug Replacement
  • Coolant Flush
  • Belt and Hose Inspection
Maintenance Notes
Use only recommended fluids and filters for optimal performance and longevity.

Warranty

Basic
Miles: 36000
Years: 3
Coverage: Bumper to Bumper
Powertrain
Miles: 60000
Years: 5
Coverage: Engine and Transmission
Corrosion
Miles: 100000
Years: 6
Coverage: Perforation Only
Emissions
Miles: 80000
Years: 8
Coverage: Federal Emissions Components

Production Details

Manufacturer
General Motors
Manufacturing Process
  • Precision Casting
  • CNC Machining
  • Automated Assembly
Quality Control
inspection: 100% Engine Testing
Tolerances: Micron-Level Precision
Certifications: ISO 9001
Sustainability Practices
  • Recycled Aluminum
  • Low-Emissions Manufacturing
  • Energy-Efficient Facilities
Production Metrics
Units Per Day: 500
Defect Rate: 0.01%
Lead Time: 2 Weeks

Service Information for 6.2l engine Service

Maintenance and service requirements specific to this component

7500
6
  • Oil and Filter Change
  • Air Filter Inspection
  • Spark Plug Check
  • Coolant Level Check
  • Belt and Hose Inspection

Use only GM recommended oil and filters.

15000
12
  • Oil and Filter Change
  • Air Filter Replacement
  • Spark Plug Replacement
  • Coolant Flush
  • Fuel System Inspection

Check for any engine codes and clear if necessary.

60000
48
  • Oil and Filter Change
  • Transmission Fluid Flush
  • Engine Mount Inspection
  • Exhaust System Check
  • Performance Testing

Perform a comprehensive engine health check and diagnostics.

Common Questions

Find answers to common questions about torque specifications

Q1

What are the technical specifications and compatibility of the 6.2L engine in the 2021-Present GMC Yukon?

The 6.2L V8 engine in the 2021-Present GMC Yukon delivers 420 horsepower and 460 lb-ft of torque. It features Dynamic Fuel Management, optimizing fuel efficiency by deactivating cylinders when full power isn't needed. This engine is compatible with the 10-speed automatic transmission and is designed for both 2WD and 4WD configurations. It meets modern emissions standards and is compatible with regular unleaded gasoline, though premium is recommended for optimal performance.

Q2

What are the maintenance requirements for the 6.2L engine in the GMC Yukon?

The 6.2L engine requires regular maintenance to ensure longevity. Oil changes are recommended every 7,500 miles or 12 months, using 0W-20 full synthetic oil. The air filter should be inspected annually and replaced as needed. Spark plugs should be replaced every 100,000 miles. Coolant flushes are advised every 150,000 miles, and the fuel system should be cleaned every 30,000 miles. Always refer to the owner's manual for detailed schedules and guidelines.

Q3

How do I install or replace the 6.2L engine in the GMC Yukon?

Replacing the 6.2L engine is a complex task best left to professionals. Begin by disconnecting the battery and draining fluids. Remove components like the intake manifold, exhaust system, and wiring harness. Use an engine hoist to lift the old engine out. Install the new engine by reversing the process, ensuring all connections are secure. Refill fluids, reconnect the battery, and test the engine. Always follow the service manual for detailed instructions and torque specifications.

Q4

How do I troubleshoot common issues with the 6.2L engine?

Common issues include rough idling, reduced power, or check engine lights. Start by scanning for diagnostic trouble codes (DTCs) using an OBD-II scanner. Check for vacuum leaks, inspect spark plugs and ignition coils, and ensure the fuel system is functioning properly. Verify that the air filter is clean and the throttle body is free of debris. If problems persist, consult a certified technician for further diagnostics.

Q5

How can I optimize the performance of the 6.2L engine in my GMC Yukon?

To optimize performance, use premium fuel for better combustion efficiency. Regularly clean the throttle body and replace the air filter to ensure proper airflow. Consider upgrading to a high-performance exhaust system for improved exhaust flow. Use a high-quality synthetic oil and adhere to the recommended maintenance schedule. For enhanced tuning, consult a professional for a custom ECU remap to maximize power and efficiency.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

2021-Present GMC Yukon Service Manual

Coming Soon

Comprehensive guide covering maintenance, repair, and troubleshooting for the 6.2L engine and other components.

Technical Service Bulletin for 6.2L Engine Updates

Coming Soon

Latest updates and fixes for the 6.2L engine, including software updates and recall information.

GMC Yukon Parts and Accessories Guide

Coming Soon

Detailed catalog of OEM parts and accessories for the 2021-Present GMC Yukon, including engine components.

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Technical Information
  • All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
  • Vehicle specifications and procedures may vary by model year, trim level, and region.
  • Always follow the manufacturer's recommended procedures and safety precautions.
  • Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
  • If you're unsure about any procedure, consult a qualified professional mechanic.
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About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

Automotive Technical Specialist

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