2022 Gmc Sierra 3500 Pro on 2040-cars

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Chevy Colorado, GMC Canyon get updated tachometers due to graphical error

After James Bearing bought a Chevrolet Colorado, he noticed a discrepancy between the truck's spec sheet and the truck's tachometer: Chevrolet said 3.6-liter V6 in the little pickup produces 305 horsepower at 6,800 rpm, but the the tachometer indicates a redline at 6,500 rpm. So either he wasn't making as much power as he was promised, or the tachometer display was incorrect. Bearing said he asked Chevy about it but got no response. Until now. A General Motors spokesman said the rev limiter is indeed set for 6,800 rpm, but the tach graphics "are slightly off" in the Colorado and the GMC Canyon, and submitted an SAE horsepower certification to back him up. If you're wondering how such a thing got past quality control... well, let's just say you're not alone. GM is going to fix "the graphics on future trucks," which makes it sound like Bearing will just have to learn to live with the indicated redline he's got. He could always pretend he's driving a sleeper, with four more ponies waiting to be unlocked in the danger zone for those who dare. Related Video: Featured Gallery 2015 Chevrolet Colorado: First Drive View 38 Photos Related Gallery 2015 GMC Canyon: Quick Spin View 27 Photos News Source: Auto Guide Auto News Chevrolet GM GMC Truck gmc canyon

'Killing a Duramax' Gale Banks YouTube series methodically tunes a diesel to death

Learning or perfecting a skill by watching YouTube videos is known as attending YouTube University. GM Authority picked up on one of the video site's more fascinating courses, hosted by Gale Banks; in a fair world, he should be referred to as Professor Banks when it comes to diesel engines and truck tuning. A few months after GM introduced the updated L5P 6.6-liter Duramax diesel V8 in the 2020 Chevrolet Silverado HD and GMC Sierra HD that ships with 454 horsepower and 910 pound-feet of torque, Banks decided he wanted to methodically tune the engine to death. The purpose of the resulting series, called "Killing a Duramax," is to push more power out of the engine in order to discover which parts break and when — or, as Banks puts it, force-feed the Duramax "until the crank hits the street and the heads hit the hood." With that knowledge, Banks can figure out all the weak points on his way to building what he calls a "Superturbo," that being a supercharged, twin-turbo race engine with more than 1,000 hp. What makes the series fascinating is Banks' knowledge, paired with the company's comprehensive iDash engine monitoring system that keeps tabs on a glut of parameters every step of the way. So for instance, you get Banks explaining the differences between inches of mercury and barometric pressure, how those are different from the water content of the air measured in grains, then showing those readouts on the iDash, then explaining in detail how they affect the air density in the Duramax system. The stock Borg-Warner variable turbo gets a lot of airtime — Banks accuses it of being "out to lunch" because he feels it's the weakest link on the engine. That turns into a turbo teardown and a deep explanation of performance pitfalls, such as when air pressure on the turbine begins to diverge from the boost pressure coming from the compressor. Banks says he can keep close tabs on where power's coming from, because the iDash monitors the horsepower contribution provided by the ambient air, the turbo, and the intercooler separately. The major changes so far are a stouter Precision 7675 turbo and TurboSmart wastegate (episode 5), a twin intake (episode 6), a custom liquid-cooled intercooler from a marine engine, a new GM oil cooler and synthetic oil (episode 10), and new injectors (episode 11).

Best midsize trucks for 2024

Pickup trucks are hugely popular in the United States, but most of them carry huge dimensions and huge price tags to match. That's where the rapidly expanding midsize truck market comes into play. With options from nearly every major manufacturer in America, there are plenty of midsize trucks to consider, but the best midsize pickup trucks are more comfortable, more capable off-road or more luxurious than the rest of the crowd. Put simply, there's an excellent midsize truck for every buyer, whether they want to save money with a low starting price and strong efficiency, tackle technical trails, surround themselves with leather and wood or even hit the road with the wind in their hair on their way to the beach. We've tested all of the midsize trucks in America available for 2024 and picked out the best choices for any type of buyer. Read on to find out which option is the best midsize truck for you for 2024 or 2025 (expect more versions of the Toyota Tacoma and Jeep Gladiator in 2025, too). If you're needs don't require a midsize truck, you may want to consider a compact. There are only two for sale in 2024, and we break down our rankings here.   Best midsize trucks for 2024 2024 Chevrolet Colorado  Why it stands out: Good ride, handling; powerful engines; strong towing; refined interior; Google infotainment Could be better: Only one cab/bed combination (four door, short bed) Starting Price: $31,095 Read our most recent Chevrolet Colorado review Suffice it to say, we're big fans of the latest Chevy Colorado. In fact, we think the Colorado is the best midsize pickup truck in America overall. Thanks to the base WT offering, the starting price is reasonable, but the Colorado is really at its best in one of its more specialized forms. The Trail Boss expands its off-road capabilities with a suspension lift and chunky tires, the ZR2 adds an even larger suspension lift and a gaggle of off-road special bits and the ZR2 Bison tops the range with sensational Multimatic DSSV spool-valve dampers, special bumpers and underbody cladding for rock-crawling prowess. In between those specialist packages lie the LT and Z71 trims, which is what will make up the majority of sales. A low-power turbocharged 2.7-liter four-cylinder making 237 horsepower and 259 pound-feet of torque is standard, while the more common engine is a more powerful version with 310 HP and 390 lb-ft. A High-Output engine option keeps the same 310 HP but boosts torque to 430 lb-ft.