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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

2015 Chevy Volt gets larger battery, though range remains the same

The Chevrolet Volt isn't changing much for the 2015 model year. According to specifications uncovered by Inside EVs, though, the new Volt's battery does have a slightly larger capacity. According to the spec sheet, this doesn't translate to increased range. Real world driving, though, might tell a different story. The 2015 Volt's battery storage is slightly higher than the outgoing model's, up from 16.5 kilowatt-hours to 17.1 kWh. According to GM's manager of electrification technology communications, Kevin Kelly, speaking to Green Car Reports, the increased capacity is "a late change done in the cell... just another continuous improvement to surprise and delight our customers." The stated electric range, however, stays at 38 miles. Inside EVs followed up on its original report, and found that drivers could see some advantage to the battery tweak. When they spoke to Kelly, he told them, "As a result of this change, we would expect that some customers may see a slight improvement in overall EV range." It's worth noting that when battery capacity increased from 16 kWh to 16.5 kWh for the 2013 Volt, electric range increased by three miles to the current 38, while MPGe went from 94 to 98. The price of the 2015 Chevrolet Volt remains steady, at $34,995. The actual cost to the customer is considerably less with the $7,500 federal tax credit, as well as any local incentives.

GM recalling 316k vehicles due to headlamp faults

General Motors has announced a recall covering 316,357 vehicles globally, due to the possibility of sporadic or permanent failure of the low-beam headlamps. 273,182 of these vehicles are in the United States, while the remaining affected units are in Canada, Mexico, and elsewhere. This recall includes the 2006-09 Buick LaCrosse (pictured above), 2006-07 Chevy TrailBlazer and TrailBlazer EXT, 2006-07 GMC Envoy and 2006 GMC Envoy XL, 2006-07 Buick Rainier, 2006-08 Saab 9-7X, and 2006-08 Isuzu Ascender. In an email sent to Autoblog, General Motors explains that if the headlamp driver modules are not functioning correctly, "the low-beam headlamps and daytime running lamps could intermittently or permanently fail to illuminate." GM states that this problem does not affect things like high-beams, turn signals, marker lamps, or foglamps. As of this writing, GM states it "has not been able to confirm whether the HDMs in these vehicles caused any vehicle accidents." The National Highway Traffic Safety Administration has been notified, but the recall has not yet posted to the government agency's website. Scroll down to read the full details in GM's email. General Motors is recalling 273,182 Buick LaCrosse sedans and Chevrolet, GMC, Buick, Saab and Isuzu midsize SUVs in the U.S. for possible intermittent or permanent loss of low beam headlamps. Affected models are: 2006-2009 Buick LaCrosse sedans; 2006-2007 Chevrolet TrailBlazer and 2006 TrailBlazer EXT; 2006-2007 GMC Envoy and 2006 Envoy XL; 2006-2007 Buick Rainier; 2006-2008 Saab 9-7X and 2006-2008 Isuzu Ascender midsize SUVs. If the headlamp driver modules is not operating correctly, the low-beam headlamps and daytime running lamps could intermittently or permanently fail to illuminate. This condition does not affect the high-beam headlamps, marker lamps, turn signals, or fog lamps. GM has not been able to confirm whether the HDMs in these vehicles caused any vehicle accidents. The total population, including the U.S., Canada, Mexico and exports from North America is 316,357. The NHTSA was sent the Part 573 information for this recall on November 25. It has not yet posted to the NHTSA website. Featured Gallery 2008 Buick LaCrosse CXS News Source: General Motors Recalls Buick Chevrolet GM GMC Isuzu Saab SUV Sedan chevy trailblazer buick rainier isuzu ascender