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GM resumes production of its 3.0-liter turbodiesel straight-six

General Motors temporarily stopped taking orders for trucks and SUVs equipped with the 3.0-liter Duramax turbodiesel six-cylinder engine in August 2021 due to a supplier shortage. Reports claimed the pause would last through 2021, but the engine is already back in production. Enthusiast website GM Authority learned from sources inside General Motors that the straight-six is once again coming off the assembly line at the Flint Engine Plant in Flint, Michigan. There's no official word on precisely what the problem was linked to and whether it was related to the on-going chip shortage that's wreaking havoc across the automotive industry. All we know is that the pause lasted for about two weeks. Called LM2 internally, the six is available in Chevrolet's Tahoe, Suburban, and Silverado 1500 and in GMC's version of these trucks. It's also an option in the Cadillac Escalade. It develops 277 horsepower at 3,750 rpm and a V8-like 460 pound-feet of torque at 1,500 rpm in every application, and it allows these big behemoths to post surprising fuel economy numbers. Fitted to a rear-wheel-drive Tahoe, the Duramax returns 21 mpg in the city, 28 mpg on the highway, and 24 mpg in a combined cycle, figures that make it more efficient than a Blazer. Demand for the diesel-powered trucks is relatively high. While the shortage undoubtedly took a toll on sales, the Duramax represented 8% of Suburban sales and 6% of Tahoe sales in May 2021. There are no other diesel-burning full-size SUVs available new so they have the market to themselves. On the truck side, Ram still makes the EcoDiesel available on some 1500 trims but Ford abandoned the segment. Related Video: Featured Gallery 2021 Chevrolet Tahoe RST View 24 Photos Chevrolet GMC Truck SUV Diesel Vehicles

2024 GMC Sierra EV Denali Edition 1 reservations closed

Reservation slots for the 2024 GMC Sierra EV Denali Edition 1 are gone. As is the case with just about every vehicle that can be reserved, regardless of cost, there weren't enough slots to satisfy the initial rush. Carscoops noticed the situation first, getting confirmation from GMC that the only avenue remaining for now is to get on a waitlist. GMC's page for the Sierra EV affirms the same, declaring "Reservations are currently full" for the Denali Edition 1. Doing so meant putting down a $100 refundable deposit, a nominal sum that anyone could back out of, but we know by now that market conditions mean between reservation holders and the waitlist there are plenty who will conclude the transaction. Duncan Aldred, head of GMC and Buick, said so himself, telling Automotive News, "It's pretty amazing. A few years ago, when we were planning Hummer, the amount of vehicles sold over $100,000 in the entire industry was not that many. Now, that has radically changed in the last three years. There's been a rapid increase in vehicle prices and there's been an even quicker rise at the top end. We expect to sell out really quite quickly." The Sierra EV Denali Edition 1 comes loaded with quilted seats, real wood trim, Super Cruise, and two motors making a combined 754 horsepower and 785 pound-feet of torque, and starts at $108,695. We don't have a number to put to the phrase "sell out," though. As GM did with the Cadillac Lyriq and Chevrolet Silverado EV, reps wouldn't divulge production caps. Aldred did admit that the reservation number is below 10,000. Two more Sierra EV trims are coming, but they're not due until 2025. That starts with the base Elevation trim bringing an MSRP around $50,000. Note, that MSRP is the prediction now. Three years is a long way away. When reservations open to the public for the standard Sierra EV Denali expected in 2024 and the following trims, GMC plans to keep a tight lid on the pot. Remember, with the Hummer EV, GMC took so many reservations that current production rates mean the automaker won't clear the list for years. Production rates will climb, certainly. However, GM builds the pickups and its Cruise Origin delivery vehicle at its Factory Zero, and there are already 110,000 Silverado EV reservations alone to get through.

2019 GMC Sierra interior looks just like the Silverado's

The GMC Sierra has pretty much always been a Chevy Silverado in disguise. There was maybe some fancier trim plus the availability of the ritzier Denali trim, but the differences mostly amounted to different makeup on identical twins. As we can see from the spy photos above, the yet-to-be-shown 2019 GMC Sierra will actually have a more distinctive exterior, but the interior will continue the me-too tradition. Immediately apparent is the fact that the whole dashboard is carryover. It's the same chunky, plasticky place to be that, while likely highly functional, did little to impress when unveiled at the Detroit Auto Show. Really, only the volume, tuning and climate control knobs look different from those in the Silverado. They appear to have a different ridged pattern on the edges, and are possibly a shinier, glossier finish. The steering wheel also looks different, with a chunkier center and more svelte spokes. The Sierra exterior would seem to be better differentiated. The headlights are very different in that they wrap around the fenders more so than on the Chevy. The grille looks more vertical and aggressive than the Silverado's. The wheel arches also differ in that the forward corners are rounded and the rears are more squared off. The GMC Sierra will be revealed March 1 in Detroit. As per usual, it will probably share all of its powertrain bits with the Silverado. That means at least 5.3- and 6.2-liter gasoline V8s and the new turbocharged 3.0-liter inline-six diesel engine. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.