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2021 GMC Canyon Denali shows its new grille

GMC showed us its new 2021 Canyon AT4 pickup at the beginning of the year. We got a few details on the "more upmarket" top-tier Denali trim coming next year, but we've been missing good photos of the article until now. The more upmarket part rings true when it comes to the front fascia of the the 2021 Canyon Denali, achieved at the cost of a busyness compared to the 2020 model. That's because designers bent the set-square lines on the current trim into angles and flared edges from top to bottom, adding more prominent textures along the way. The comparison shot in the gallery above reveals all,  the "exclusive heroic grille design" — really, that's GM's name for it — the heart of "a more distinctive and sophisticated design that has become synonymous with Denali," according to Holt Ware, the brand's head of exterior design. Inside, the luxury trim offers a new and exclusive open pore ash wood for accents, a Cocoa/Dark interior treatment, heated and cooled front seats, aluminum trim, and embroidered headrests. There's wholesale change coming for the entire Canyon lineup, but we need to wait for GM to officially announce the 2021 pickup to codify everything properly. The trim walk has changed, from Canyon, SLE, All Terrain, SLT, and Denali to Elevation Standard, Elevation, AT4, and Denali, and we're still wondering what this might to do the $650 Elevation Edition cosmetic package. The bargain basement models have also gone away, putting the new MSRP floor $4,200 above the 2020 model to go along with other price increases dotted throughout the lineup. GM Authority says Canyon production won't be delayed by the coronavirus lockdown, so production should begin n Wentzville, Missouri, in a few months. Related Video:    

Chevy's 6.6-liter Duramax is pretty much all new

To say there's a heated battle in heavy-duty pickups is an understatement, with Chevrolet, Ford, and Ram constantly trading blows of increased torque, horsepower, and towing capacity. The latest salvo is the revised, more powerful turbo diesel 6.6-liter Duramax V8 in the 2017 Chevy Silverado. It has 910 pound-feet of torque, an increase of 145, putting it nearly level with the Ford Super Duty. Here's a closer look at where those gains come from. How exactly did Chevrolet add all that torque plus 48 horsepower? The automaker essentially took a fine-tooth comb to the entire engine. Chevy says it changed 90 percent of the V8, and the cumulative effect of those small changes adds up to big increases. As you might guess, the turbocharger is updated. The larger unit features electric actuation of the variable nozzle turbine (VNT), and what Chevy calls a double axle cartridge mechanism that separates the VNT moving parts from the housing. That helps with heat performance as well, with a claim that the exhaust side of the turbo can run continuously up to 1,436 degrees Fahrenheit. Helping that cause are six exhaust gaskets made of Inconel - an nickel alloy that contains chromium and iron – and upgraded stainless steel for the exhaust manifold. Despite having the same cast iron cylinder block, albeit with some minor enhancements, the engine has new cylinder heads, pistons, piston pins, connecting rods, and crankshaft, which have all been upgraded to handle 20 percent higher cylinder pressures. Alongside the increase in pressure, Chevrolet also increased the cylinder head's structure with a honeycomb design. The pattern features high-strength aluminum with dual layer water jackets that not only improve strength, but also optimize water flow for better cooling. For 2017, the cylinder head also benefits from integrated plenum that aids the engine in getting more air under heavy loads. The cylinder head isn't the only component to get a minor update, as the pistons have a larger diameter pin for improved oil flow. The same detailed improvements has been bestowed to the humble connecting rods (second in our hearts only to the inanimate carbon rod). The new design has the bolts oriented roughly 45-degrees to the rod instead of parallel. The angle split design, as it's called allows for easier passage through the cylinder.

GM recalling another 2.7 million vehicles in five separate campaigns

The recalls keep rolling in from General Motors, evidently keen to avoid repeating the mistakes of the ignition-switch debacle and clean house. This time they're all coming at once, with five separate recalls announced together covering approximately 2.7 million vehicles.
The largest of the five actions involves over 2.4 million units of the previous-generation Chevrolet Malibu and Malibu Maxx, Pontiac G6 and Saturn Aura in order to fix brake light wiring harness, which have been found to be susceptible to corrosion. The recall is separate from the 56k Aura sedans which GM recently recalled over faulty shift cables, not to mention the previous massive recall of 1.3 million vehicles - some of them the same models - but appears to have resulted from the National Highway Traffic Safety Administration investigation that started with the G6 almost a year ago.
The second-largest campaign involves the 2014 Chevy Malibu, specifically those fitted with GM's 2.5-liter engine and stop/start system, approximately 140,000 examples of which has been found to have problematic brakes. The issue does not appear to be connected to the recall of 8k Malibu and Buick LaCrosse sedans (also involving brake woes) which we reported upon last week. Four crashes have been reported in such models, but GM admits it's not yet clear if the problem was a contributing factor in the accidents.