I paid cash for two trucks, both failed.” A GMC owner exposes a 3.0L Duramax nightmare. Engines seizing at 6k miles, no ...

One of America's most beloved turbodiesel engines, the 3.0-liter inline-six Duramax, powering the GM full-size SUVs, has just bid farewell to the car industry for good. GM killed it last week. August ...

High mileage on a 6.6 Duramax is less about a single scary number on the odometer and more about how that number lines up with the engine’s design, maintenance history, and known weak spots. The same ...

The Great Recession was rough on everyone in the late 2000s, especially General Motors. The automotive giant was nearly forced to dissolve, though it declared bankruptcy in 2009 and infamously ...

A GMC Sierra AT4 owner is trading in his Duramax for a 2025 Ford F-150 Lariat after repeat "Check Engine" failures. From "seats that suck" to coolant valve nightmares, find out why this high-mileage ...

When it comes to pickup trucks, most enthusiasts take a hardline stance. You're either a Ford fan, a Ram fan, or a Chevy fan. There doesn't tend to be a lot of compromise or love lost between the ...

Over the last century, Chevrolet has rolled out several impressive engines, from the Gen I 350 small-block V8 and the Gen III Vortec 5300 V8, both of which we included on our list of the most reliable ...

Certain units of 2020 through 2024 GMC Sierra 1500 and 2020 to 2024 GMC Sierra HD pickup trucks, as well as 2021 to 2024 GMC Yukon SUVs, equipped with one of several available Duramax diesel engines, ...

Over a decade ago, General Motors developed an engine that could have revolutionized the market for half-ton trucks and diesels. Tragically, it never did. The 4.5-liter Duramax V8 that was supposed to ...

Recent spy footage of several prototype GM HD trucks undergoing testing in Colorado has reignited speculation about the long-rumored 8.3L Duramax diesel engine, nicknamed “MegaMax.” The video was ...

When it comes to heavy-duty diesels, enthusiasts and truck owners inevitably circle back to the best American diesel engines: Ford's 7.3L PowerStroke, Dodge's 5.9L Cummins, and GM's 6.6L Duramax. If ...

Theo has dedicated his life to cars. He has studied the only Automotive Journalism course in the world located at Coventry University and describes this passion as a clinical obsession. Give Theo four ...