1999 Gmc 1500 4wd Geneva Conversion on 2040-cars

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2015 Chevy Silverado, GMC Sierra can tow up to 12,000 pounds

Think back to the launch of the 2014 Chevrolet Silverado. At the time, General Motors happily trumpeted that its fullsize pickup could tow up to 11,500 pounds when properly equipped - impressive stuff, no doubt. But now, revised tow rating practices have been put into place, called SAE J2807. And with these new methods of testing, GM can now officially rate both the Silverado and its GMC Sierra twin as being able to tow up to 12,000 pounds.
Of course, not all Silverado and Sierra models are capable of this feat. In fact, because of SAE J2807, most of the truck models have actually had decreases in tow ratings from the 2014 to 2015 model year. For example, a 2014 Silverado Crew Cab with the 5.3-liter V8, 5.7-foot box and 3.73 rear axle was rated at 11,200 pounds in 2014, but has since been reduced to 10,800 in 2015. Same goes for the Sierra.
But for 2015, both the Silverado and Sierra can be had with a more powerful 6.2-liter V8, as well as a Max Trailering Package that includes a 9.76-inch rear axle, heavy-duty rear springs, revised shock tuning, improved cooling and a new trailer brake controller. There are also four- and seven-pin, bumper-mounted connectors, a trailer hitch (duh), and a G80 locking rear differential. This configuration, with either model, is the only way you can actually tow 12,000 pounds.

GM recalls 3.8 million vehicles in North America due to braking issue

WASHINGTON — General Motors Co said Wednesday it was recalling 3.46 million U.S. pickup trucks and SUVs to address a vacuum pump issue that could make braking more difficult and that has been linked to 113 accidents and 13 injuries. The recall covers 2014-2018 model year vehicles, including some Cadillac Escalade, Chevrolet Silverado, Chevrolet Tahoe, GMC Sierra, Chevrolet Suburban and GMC Yukon vehicles. In late June, GM recalled 310,000 vehicles in Canada for the same issue. GM did not immediately explain why the Canadian recall occurred more than two months before it called back the vehicles in the United States. The recall was triggered because the amount of vacuum created by the vacuum pump may decrease over time, GM told the National Highway Traffic Safety Administration (NHTSA) in documents posted on Wednesday. The NHTSA opened a preliminary investigation into the issue last November, and said it had reports of nine related crashes and two injuries. It provided GM in July with additional field reports that prompted the automaker to open an investigation. GM said it could affect braking in "rare circumstances." The NHTSA said in a statement the "vehicles may experience brake boost failure, which would require increased brake pedal effort, leading to a hard brake pedal feel, and potentially increased stopping distance." GM said dealers will reprogram the electronic brake control module to improve how the system utilizes the hydraulic brake boost assist function when vacuum assist is depleted. GM said the vacuum assist pump, which is lubricated with engine oil that flows into the pump through a filter screen, can in some cases lose effectiveness over time, as debris such as oil sludge can accumulate on the filter screen. GM told NHTSA that prior model years used a different brake assist system design, and vehicles manufactured after 2018 were not equipped with the affected pump design. Separately, GM said on Wednesday it is recalling 270,000 additional U.S. vehicles in three smaller recalls, including 177,000 2018 Chevrolet Malibu cars with 1.5L turbo engines because an error in the engine control module software may result in the fuel injectors being disabled.

2022 GMC Yukon AT4 to offer 6.2-liter V8

A year ago, GM said it was considering making its 6.2-liter V8 available outside the flagship trims of its full-sized SUV trio of Chevrolet Tahoe and Suburban, and GMC Yukon. There has been a year of gnashing teeth on GM forums since the automaker decided to meditate on the issue, but GM Authority reports The General has finally made the call — the 2022 Yukon AT4 will offer the 6.2-liter. This follows last week's news that three 2022 Chevrolet Tahoe and Suburban trims would also add the 6.2-liter as an option. With the Yukon Denali already in the 6.2-liter camp, only the Yukon SLE and SLT will be left out. Those latter two levels will continue to offer the 3.0-liter Duramax diesel as the optional engine, which the AT4 trim cannot take advantage of because the AT4's front fascia and skid plate interfere with the diesel's plumbing. The 5.3-liter V8 that's the standard engine makes 355 horsepower and 383 pound-feet of torque. The 6.2-liter makes 420 hp and 460 lb-ft. As has been pointed out, the 5.3-liter can tow 200 pounds more than the 6.2, but fuel economy is a wash — the 5.3 only gains 1 mpg in the city over the 6.2. This is a pure power play. For the moment, it looks like Yukon AT4 buyers won't need to do anything other than check a box to get the 6.2-liter. That's the opposite of what some Tahoe and Suburban buyers will face when trying to get the 6.2-liter for their rigs; outside of the Premier trim, Chevy put the engine behind a paywall of option packages. Since GMC hasn't revealed pricing for the 2022 lineup yet, we don't know what the surcharge will be for the big engine. The GMC Sierra AT4 pickup charges $2,195 to go from the 5.3 to the 6.2, so that's probably in the ballpark. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.