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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

New J.D. Power Initial Quality Study puts Porsche, GM in spotlight

J.D. Power and Associates has released its annual Initial Quality Study, and this year, Porsche and General Motors took the spotlight. The study, which asks new car owners to report problems experienced during the first 90 days of ownership, found that overall, the industry averages 113 problems per 100 vehicles.
Porsche managed a score of just 80 problems per 100 vehicles, while GMC took the second spot on the podium with 90. Lexus filled out the top three with 94 problems per 100 vehicles, followed by Infiniti at 95 and Chevrolet at 97. The study also looks at specific models, and found the Lexus LS to enjoy the best initial quality at 59 problems per 100 vehicles.
Interestingly enough, the report found that around two-thirds of most owner problems experienced in the first 90 days are attributable to vehicle design instead of mechanical failure. Specifically - echoing a refrain we've been hearing for the last few years - owners are having a hard time figuring out how to use the technology present in their new vehicles. Head over to the J.D. Power site for more information, or scroll down below for the company's related press release.

GM delaying additional Silverado EV and Sierra EV production to Q4 2025

This looks like more "Gotcha!" news about storms in the EV sector, but the word "additional" is key here. The Detroit News reported today that GM is pushing delaying production of the Chevrolet Silverado EV and GMC Sierra EV pickups at the Orion Assembly Plant to late 2025, about a year behind expectations. The Silverado EV Work Truck is already in production at GM's Factory Zero in Detroit, which won't change. Retail versions of the Silverado EV are still planned for production at Factory Zero before the end of this year, and the Sierra EV is expected to enter production at Factory Zero early next year. This new plan simply means GM won't add more production of those electric trucks at Orion.  GM builds the Chevrolet Bolt at Orion right now, assembly of that groundbreaking car to end this year. GM's original idea was to spend $4 billion to convert Orion to EV pickup production in time to get its two giant profit makers rolling down lines in early 2025. The move to late 2025 could mean the plant is out of commission for about two years. The facility's 1,261 employees are being offered spots in other plants, including Factory Zero.  The automaker gave several reasons for the move, a spokesperson telling The Detroit News the company wants "to better manage capital investment while aligning with evolving EV demand," and telling the Detroit Free Press, "We're looking at EV demand and the trendline for EVs is stabilizing. ... It is not rising as fast as originally forecasted." On top of that, engineers "have identified engineering improvements that we will implement to increase the profitability of our products." The spokesperson also made it clear that the delay has nothing to do with the UAW strike, now in its 32nd day.  Factory Zero's working up to a near-term production capacity of about 600,000 units annually, GM saying it wanted to get capacity to 1 million EVs annually by the end of 2025. At the moment, the site builds the Silverado EV Work Truck, the GMC Hummer EV pickup and SUV, and the Cruise Origin shuttles — not the Bolt taxis, the autonomous pods. The Detroit News reported GM sold 18 Silverado EV Work Trucks in Q3 this year, GM Authority says GMC Hummer EV production has ramped up to about 3,000 units per month, and Cruise Origin is still waiting on approval from the National Highway Safety Traffic Administration to mass-produce the autonomous shuttles because the shuttles need an exemption for not having steering wheels.