The 2026 GMC Sierra 2500 HD gives buyers a clear choice between a 6.6L V8 gas engine and a 6.6L Duramax turbo-diesel V8, each tuned for different needs. Gas offers lower upfront cost and simpler ...

A 2020 Chevrolet Silverado 1500 with the 3.0L Duramax LM2 diesel lost oil pressure without warning somewhere around 140,000 ...

Two Sierras, two very different missions! We break down the AT4 and AT4X in terms of suspension, off-road capability, pricing, and more. The AT4 runs Rancho Monotube shocks and a locking rear diff.

GM is preparing to launch a new generation of its hugely popular full-size pickup trucks. So far, our spy photographer has spotted several camouflaged Chevy Silverado 1500s roaming around, but now we ...

One major difference between the 3.0L Duramax diesel engine from Chevrolet and the 3.0L Power Stroke from Ford is their availability. The 3.0L Power Stroke was discontinued following the 2021 model ...

Quality issues related to the 3.0L I6 LZ0 turbodiesel Duramax are drawing more and more attention online, and in response, General Motors recently issued a new Technical Service Bulletin aimed at ...

While the fuel economy of the baby GMC Sierra Duramax is hard to beat, one owner explains why he’s happily trading 22 MPG for the "Old Reliable" Ford Coyote V8 to escape the relentless cycle of shop ...

After his second brand-new GMC Sierra engine seized at just 6,961 miles, this 30-year loyalist was left stranded without a loaner and handed a denial letter that exposes a terrifying reality for every ...

This 2022 GMC Sierra 3500HD Denali 4x4 is a Crew Cab-spec truck rocking a 6.6-liter Duramax turbodiesel V8 engine and $13,920 worth of options. It was purchased new for $83,715 and subsequently sold ...

General Motors has issued a new Special Coverage bulletin for certain units of the 2023 GMC Sierra 1500 to address a potential issue with the engine coolant control valve. Owners may notice that their ...

About two decades after the launch of the 6.6-liter Duramax V8, GM's 3.0-liter Duramax inline-six turbodiesel arrived in 2019 with a promise to deliver "outstanding fuel economy, great horsepower, and ...

GMC pitches the Sierra EV as off-road capable in its AT4 guise, but that proves tricky for this large and heavy truck. Long range, relatively fast charging speeds, the ability to extend its cargo ...