2004 Gmc Yukon Xl 1500 Slt Sport Utility 4-door 5.3l on 2040-cars

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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 Canyon, GMC Colorado to net up to 27 mpg with 4-cylinder

Before even officially going on sale to customers, the GMC Canyon and Chevrolet Colorado midsize pickup twins are already proving to be a success with dealer orders exceeding original projections. Now, there is even more good news for these siblings, with the fuel economy for their four-cylinder engines netting class-leading numbers and the 3.6-liter V6 getting segment-best payload ratings.
The 2.5-liter four-cylinder in the two trucks makes 200 horsepower and 191 pound-feet of torque, and in rear-wheel drive and six-speed manual trim it has an EPA rating of 19 mpg city, 26 mpg highway and 22 mpg combined. Opting for a two-wheel drive configuration with the six-speed automatic bumps those figures slightly to 20 mpg city, 27 mpg highway and 22 mpg combined. Finally, a four-wheel drive model with the automatic 'box carries a 19/25/21 rating. Those numbers are a tick better here and there compared to what's offered by the optional V6.
The twins' major four-cylinder, midsize pickup rivals are the Toyota Tacoma and Nissan Frontier, but they're both getting somewhat long in the tooth. To compare fuel economy and power, a two-wheel drive Tacoma with its 2.7-liter four-cylinder is rated at 159 hp and 180 lb-ft, and achieves 21/25/22 mpg. The Frontier with its 2.5-liter four-cylinder is good for 152 hp and 171 lb-ft, and carries 19/23/21 mpg figures.

GM reportedly developing 2.5-liter turbo four-cylinder

General Motors is allocating a massive amount of resources to developing electric technology, but it's not forgetting about the gasoline-powered cars that make up the bulk of its sales. It's reportedly designing a new 2.5-liter turbocharged four-cylinder engine based on its 2.7. Citing "sources familiar with the matter," enthusiast website GM Authority wrote that the 2.5-liter four is "in [the] final stages of development," meaning it should be announced sooner rather than later (assuming the report is accurate). Technical details are few and far between as of writing. The publication learned that the 2.5 will be part of the Cylinder Set Strategy (CSS) family of engines and that it will be mechanically related to the 2.7-liter currently found in the Chevrolet Silverado 1500, among several other models. It will feature dual overhead camshafts. It's too early to tell which models the 2.5-liter four-cylinder will end up in, or how much power it will generate. The output will likely depend on the application. For context, the 2.7 delivers 310 horsepower at 5,600 rpm and 348 pound-feet of torque between 1,500 and 4,000 rpm in the Silverado. In the smaller Colorado, it provides anywhere between 237 and 310 horsepower depending on the trim level selected. While this is pure speculation, our crystal ball tells us the engine will end up powering crossovers. It's an easy deduction to make. We can't imagine it will be offered in the Silverado, and seeing it in the Colorado is unlikely because its entry-level engine develops 237 horsepower; there's likely not much of a market for a midsize truck with 200 or so horsepower. Putting it in the Corvette wouldn't make sense and the Camaro has nearly reached the end of its life cycle without a successor planned. This leaves us with Chevrolet's range of crossovers, like the Equinox, as well as their GMC-, Buick-, and Cadillac-branded counterparts. We're not discounting the possibility that the cars set to receive the 2.5 haven't been unveiled, but those are likely crossovers, too; the odds of seeing another big Chevy sedan are very, very low. General Motors hasn't commented on the report, and it hasn't publicly announced plans to expand its CSS family of engines. If the report is accurate, we should learn more about the new turbocharged, 2.5-liter four-cylinder engine in the not-too-distant future. Featured Gallery 2022 Chevrolet Equinox RS View 56 Photos Buick Chevrolet GM GMC