Engine Of The Day: 2010 GMC Yukon 5.3L Engine: Performance, Reliability & Replacement Options
The 2010 GMC Yukon with the 5.3L V8 engine strikes a balance between power, reliability, and everyday drivability. Whether you rely on your Yukon for family road trips or serious towing, the 5.3L engine under the hood is the heart of its performance. If you’re in the market for a high-quality replacement engine, Gearhead Engines has you covered with remanufactured options that restore like-new performance—backed by a strong warranty and expert support.
5.3L V8 Engine Overview
The 5.3L V8 found in the 2010 Yukon (engine codes LMG or LC9) is part of GM’s trusted Gen IV small-block engine family. Here are some quick specs:
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Horsepower: 320 hp
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Torque: 335 lb-ft
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Fuel System: Sequential fuel injection
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Towing Capacity: Up to 8,500 lbs (properly equipped)
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Fuel Type: Gasoline or E85 (Flex Fuel models)
Designed with GM’s Active Fuel Management (AFM) system, the engine can switch between 8 and 4 cylinders to improve fuel economy.
Common Engine Issues
Even well-built engines show wear over time. Here are a few known issues with this engine:
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AFM Lifter Failure: AFM-equipped models often experience lifter collapse or ticking sounds. Many customers opt to delete the AFM system entirely during replacement.
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High Oil Consumption: This is often linked to the AFM system and worn piston rings.
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Carbon Buildup: Especially in engines with higher mileage.
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Intake Manifold Gasket Leaks: Can lead to rough idling or vacuum issues.
If your Yukon is showing signs of these problems, a remanufactured 5.3L engine from Gearhead is a smart, cost-effective solution.
Why Choose a Remanufactured Engine from Gearhead?
At Gearhead Engines, we do more than just swap parts—we restore engines to OE specifications or better. Here’s why thousands of customers trust us:
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Thorough Inspection & Machining
Every engine is disassembled, cleaned, and precision-machined for long-term durability.
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Upgraded Components
We address known failure points, including replacing worn lifters, installing improved gaskets, and eliminating AFM where requested.
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Warranty Included
Our remanufactured 5.3L engines come with a nationwide warranty, giving you peace of mind on the road.
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Fast Shipping & Friendly Support
With shipping options across the U.S. and a team of engine experts ready to help, getting back on the road has never been easier.
Ready to Replace Your Yukon’s Engine?
If your 2010 GMC Yukon 5.3L engine is failing, don’t settle for a used motor with unknown mileage. Choose a remanufactured engine from Gearhead and restore your vehicle’s performance, reliability, and resale value.
Get Your Quote Now
Let’s get you back on the road with confidence.
Gearhead Engines — built to last, tested to perform.
Visit our GMC engines section GMC Engines for more information.
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