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Leak reveals GM's 2017 heavy duty diesel trucks to get 910 lb-ft of torque [UPDATE]

UPDATE: Chevrolet officially announced specs for the 2017 Silverado HD and the rumors were true. The truck's new Duramax 6.6-liter turbo-diesel V8 puts out 445 horsepower and 910 pound-feet of torque. Chevrolet says the new motor produces 19 percent more torque and 12 percent more horsepower, while producing 35 percent fewer emissions. Overall, the new engine is a big improvement over the current motor, which generates 397 horsepower and 765 pound-feet of torque. According to Truck Trend, GM's newest heavy duty pickup trucks will pick up quite a bit more power and torque. The publication spotted a recent GM Powertrain ordering catalog that had the engine specs for the 2017 model year and managed to get some screenshots before the catalog was taken down, and they can be viewed here. The screenshots revealed that the 6.6-liter turbodiesel V8 powering the Silverado and Sierra heavy duty models will boast 445 horsepower and 910 lb-ft of torque. This is a substantial gain over the current models' 397 horsepower and 765 lb-ft of torque, and as Truck Trend points out, it exceeds the Ford Super Duty line's horsepower output of 440, but comes short of the 925 lb-ft rating. Truck Trend credits part of this output gain to the new intake system GM will introduce on the 2017 heavy duties. The intake gets 60 percent of its air from a scoop on the hood, with the other 40 percent coming from behind one of the front fenders. GM doesn't reveal horsepower figures in the press release about the scoop, but it does say the cooler air helps with maintaining the engine's output, and that the scoop does produce a ram-air affect, providing more air at speed. As we know, more air plus more fuel equals more power, but there's likely more to the power increase in this engine than only the intake. Related Video: News Source: Truck Trend via MSN Chevrolet GM GMC Truck Diesel Vehicles

2021 Chevy Colorado and GMC Canyon facelift spied

The Chevy Colorado and its GMC Canyon twin have been on sale for a good long time now, and while things move a little more slowly on the truck side when it comes to facelifts and model changeovers, it seems like it’s about time. So itÂ’s no surprise to see some lightly camouflaged trucks running around ahead of what appears to be a minor refresh for the 2021 model year. Starting with the Colorado, it appears to have a bowtie hiding behind some camo in the center of the grille, which otherwise looks like the no-bowtie option you can get on 2019-and-up trucks. It could be that Chevy is keeping the no-bowtie grille design but allowing a bowtie to grace it, or it could be misdirection. Either way, the grille pattern adds a bit of flair to the otherwise staid front end design. There also appears to be a bit more shape to the lower air inlet, with echoes of some of the lower fascias of its bigger Silverado stablemate. The Canyon, on the other hand, shows more extensive front-end changes. At first glance, it looks to emulate some variants of the GMC Sierra, which would make sense given those modelsÂ’ changes for the 2020 model year. In particular, this Canyon has hints of Sierra HD, being more square and monolithic than the regular Sierra 1500s, although itÂ’s a little hard to tell with the camo covering the edges of the grille. It could certainly also adopt more rounded corners like the 1500s. Either way, itÂ’s more vertical and thereÂ’s less differentiation between the upper grille and lower opening. ThereÂ’s nothing in the way of changes around the sides or back, and while there may be some minor changes inside, we arenÂ’t expecting any. The word around town is that this isnÂ’t a full facelift, but rather a minor front end tweak thatÂ’ll just be a regular part of the model-year changeover. 

GMC Hummer EV recalled over improperly sealed battery pack

Over 700 units of the GMC Hummer EV built during the 2022 and 2023 model years will be recalled due to an improperly sealed battery pack that lets water in. The firm issued a stop-delivery order at the same time as the recall, and it hasn't found how to fix the problem yet. Assigned recall number 22V-771 by the National Highway Traffic Safety Administration (NHTSA), the campaign includes 735 examples of the Hummer EV and 89 units of the BrightDrop Zevo 600 van. These two vehicles are pegged on opposite ends of the automotive spectrum, but they're affected by the same problem: "the high-voltage battery pack enclosure in some of these vehicles may not have been properly sealed," GMC notes, adding that "flanges on the battery pack enclosure may not have been properly primed or electrocoated." Water can wreak havoc in a high-voltage battery pack. GMC told NHTSA that it has found three EVs with this problem: an internal test vehicle that lost power while driving and two customer-owned vehicles that wouldn't start. As of writing, the firm is not aware of any accidents, injuries, or fires related to the issue, and GMC estimates that only about 1% of the recalled EVs are affected. GMC began notifying dealers of the recall in October 2022, and it plans to start reaching out to owners on November 28, 2022. However, a fix hasn't been found yet. In the meantime, the company issued a stop-delivery order and asked dealers not to attempt their own repairs. This isn't the Hummer EV's first run-in with water-related problems. In August 2022, General Motors voluntarily recalled 424 units of the Hummer EV and the Zevo 600 van due to a high-voltage connector that can prematurely corrode. The problem also let water leak into the battery pack, though it sounds like fixing it was reasonably straight-forward and involved applying sealant to the connector. Related video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Featured Gallery 2022 GMC Hummer EV Edition 1 First Drive View 17 Photos Green GMC Hummer Truck Electric