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GM pauses 3.0-liter turbodiesel production due to a supplier shortage

General Motors confirmed it has temporarily stopped taking orders for trucks and SUVs equipped with the 3.0-liter Duramax turbodiesel six-cylinder engine. It blamed the last-minute pause on a supplier-related shortage. Website TFL Truck first reported the news, and a representative from General Motors quickly confirmed it. The spokesperson explained the issue is due to a "temporary part shortage" and added that production will resume "as soon as possible," meaning the Duramax engine (which is called LM2 internally) is not going away permanently. Additional details are not available, so we don't know if the issue is related to the ongoing chip shortage. Rather than delay deliveries and create a backlog, General Motors is reportedly asking its dealers to encourage buyers who want a turbodiesel engine to instead select either the 5.3-liter V8 or the 6.2-liter V8, depending on the model selected. Both are gasoline-powered units. There's no word yet on when Duramax production will resume. The shortage affects several models, including Chevrolet's Tahoe, Suburban, and Silverado 1500 and GMC's variants of these trucks. Cadillac's Escalade is temporarily diesel-less as well. Heavy Duty variants of the Silverado and the Sierra are not affected because they're powered by a different Duramax engine with eight cylinders. Motorists seeking a full-size SUV powered by an efficient turbodiesel engine are temporarily out of options because the Tahoe/Yukon and the Suburban/Yukon XL had the segment to themselves. The Duramax was surprisingly popular, too: in May 2021, GM Authority reported that the turbodiesel straight-six represented 8% of Suburban sales and 6% of Tahoe sales. Installed in a rear-wheel-drive Tahoe, the engine returns 21 mpg in the city, 28 mpg on the highway, and 24 mpg in a combined cycle, figures that make the body-on-frame behemoth more efficient than the unibody, front-wheel-drive Chevrolet Blazer that's 20 inches shorter and approximately 1,700 pounds lighter. Related video: 2021 Chevrolet Tahoe 3.0L Duramax engine

Updated Chevy Silverado spied, possibly with aluminum components

Chevrolet is readying a refresh for its trusty Silverado pickup, and these spy shots give us our first glimpse at what might be in store. The front and rear fascias of this prototype are covered, obscuring some styling tweaks (with LED accents up front). More interestingly, our spies suggest that many of the Silverado's body components could move to aluminum with this mid-cycle update. The hood will go from steel to the lighter alloy, and it's possible the front fenders could benefit from the weight-saving material, too. Ford's latest F-150 is extremely aluminum-intensive, and by switching the construction, 700 pounds was trimmed off the truck's weight. We've already heard that General Motors is working with a similar plan for its next-generation fullsize trucks. Beyond that, expect the smaller 5.3-liter V8 to ditch its six-speed automatic transmission in favor of the eight-speed unit that's already mated to the larger, 6.2-liter V8. Neither transmission will stick around very long, as the trucks will likely adopt a 10-speed automatic around 2017. Look for the updated Silverado to debut later this year, likely as a 2016.5 model.

2023 Detroit Auto Show Mega Photo Gallery: All the new reveals and first looks

The 2023 Detroit Auto Show didn’t play host to a lot of reveals, but on top of the new cars that were revealed there, automakers brought a whole bunch of cars we havenÂ’t seen in person yet. In a show of home strength, all the big reveals came from the hometown Big Three, with Ford, GM and Stellantis playing host to the most important unveilings. We took Huntington Place by storm to capture all of the new cars and sights to see in Detroit, and you can see everything we did in the series of galleries below. Interesting special editions like the 2024 Ford F-150 Lightning Platinum Black Edition and the 2024 Chevrolet Camaro CollectorÂ’s Edition found some floor space alongside bigger debuts like the refreshed gasoline-powered F-150 and 2024 Jeep Gladiator with its new interior. If you wanted to see it all yourself, make sure you check out our guide on how to attend the public show days. Scroll on down to see all of the galleries for all of the big Detroit debuts.   2024 Ford F-150 2024 Ford F-150 Tremor View 22 Photos   2024 GMC Acadia 2024 GMC Acadia AT4 View 17 Photos   2025 Cadillac CT5 2025 Cadillac CT5 View 15 Photos   2024 Jeep Gladiator 2024 Jeep Gladiator Live View 10 Photos   2025 Ford Mustang GTD Mustang GTD View 9 Photos   2024 Ford Mustang Mach-E Rally 2024 Ford Mustang Mach-E Rally View 10 Photos   Chevrolet Colorado ZR2 AEV Bison Chevrolet Colorado ZR2 AEV Bison View 6 Photos   2024 Ford F-150 Lightning Platinum Black 2024 Ford F-150 Lightning Platinum Black View 11 Photos   2024 Chevrolet Camaro CollectorÂ’s Edition ZL1 1LE 2024 Chevrolet Camaro Collector's Edition ZL1 1LE View 8 Photos   2024 GMC Sierra EV Denali 2024 GMC Sierra EV Denali View 8 Photos   Related video: Design/Style Green Detroit Auto Show Cadillac Chevrolet Ford GM GMC Jeep Technology Truck Coupe Crossover SUV Electric Hybrid Luxury Off-Road Vehicles Performance Sedan