2003 Gmc Sonoma 4x4 3 Door Extended Cab 1/2 Ton V6 Pickup - Nice! on 2040-cars

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GM alerting truck and sedan owners to a do-over on brake recall

A recall campaign intended to address issues with braking systems on certain 2019 General Motors trucks and sedans may have introduced a new issue, the automaker has acknowledged, and thousands of owners driving repaired vehicles may need to return to their service departments for another update.  The update addresses a fix that was pushed out to owners of more than half a million brand-new GM trucks and sedans that could potentially lose partial braking function, according to the Detroit Free Press. The original software fix helped address situations where the vehicles' anti-lock braking systems would become disabled, which in turn would prevent electronic stability control from activating. Vehicles subject to the recall would often experience software glitches that prevented them from properly communicating the operational state of these systems, meaning drivers would have no idea that their brakes may not behave as expected in an emergency. The 2019 Chevrolet Silverado 1500, Cadillac CT6, and GMC Sierra 1500 were all recalled in the original campaign.  Unfortunately, the early version of this fix appears to have introduced yet another software glitch, indicating that the original fix did not do the trick. Those who have not yet had their cars serviced can rest easy; they will only receive the most up-to-date version of the software fix.  Related video    

GMC Canyon AT4 OVRLANDX concept previews potential Bison-like model

GMC is signaling a move into serious off-road territory with this Canyon AT4 OVRLANDX concept. As its name suggest, this one-off was put together as a demonstration of what an overland-style GMC midsizer could potentially look like, but a glance beneath the surface reveals the bones of what we expect to be the forthcoming Canyon AT4X.  While "AT4" has been trickling down through the GMC lineup for the past few model years, AT4X kicks the basic off-road formula up a notch, a la Chevrolet's Colorado ZR2, which gains extra underbody protection, locking front and rear differentials and Multimatic's phenomenal DSSV dampers.  GMC Canyon AT4 OVRLANDX Off-Road Concept View 23 Photos OVRLANDX takes that to the next level, borrowing (and building upon) cues from the even-more-rugged ZR2 Bison, including rocker panel guards, cast-iron control arms, a custom front bumper with an integrated winch, built-in front recovery points, wheel arch trim with integrated LED task lighting, and guy lines for protecting the windshield from low-hanging branches. The custom rear bumper is even from American Expedition Vehicles (AEV), with whom Chevy partnered to produce the Bison's unique exterior bits. Does that seem like a wink and nod to you? “We wanted to showcase GMC Canyon with this concept and punctuate GMCÂ’s commitment to premium, off-road capable vehicles,” said Buick & GMC Global Vice President Duncan Aldred. "Consumer reaction to this conceptÂ’s design will help us further serve the growing market of buyers leading authentic outdoor lifestyles." This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. To that end, they threw a few more goodies at the concept. In a way, the roof-mounted tent, awning, cooler and kitchenette are just there to disguise the fact that GMC will likely build a production pickup with much these same specs when the new model debuts for the 2023 or 2024 model year – or perhaps even sooner. While this concept is built around GM's existing 3.6-liter V6 powertrain, the redesigned Canyon is expected to be offered with just one engine: a 2.7-liter turbocharged four-cylinder lifted from the Silverado and Sierra pickups.  Rumors have pointed to a GMC variant of the Colorado ZR2 since the midsize pickup adopted the AT4 branding for its off-road variant.

Diesel Power finds the ultimate modified oil-burner

For nine years, Diesel Power magazine has run the Diesel Power Challenge, this year's grindfest being "a week-long torture test that features seven events, nine trucks, 8,000 horsepower, and nearly 15,000 pound-feet of torque." The road to being crowned "the most powerful truck" starts with a dyno run, and then continues through the completion of a CDL-style obstacle course, an eighth-of-a-mile drag race while towing a 10,000-pound trailer, a quarter-mile drag race without a trailer, a fuel economy test in the mountains and finally a sled-pulling test through a 300-foot-long packed-mud pit.
What kind of trucks get into such a fight? Last year's winner, for instance - who upgraded his truck this year to prove he didn't "luck into the win" - drives a 2008 Ford F-250 Super Duty with a 6.4-liter Power Stroke V8 upgraded with a custom intake, Elite Diesel triple turbos and a two-stage nitrous system. Another competitor has a 2005 Dodge Ram 2500 powered by a 5.9-liter Cummins inline-six, upgraded with Garrett turbos, dual-stage nitrous, a seven-inch exhaust stack and twin fans built into the bed to cool the Sun Coast Omega transmission. The numbers on that truck: 1,255 horsepower, and 2,063 pound-feet of torque at the wheels. Naturally, as the image above might suggest, things don't always end well.
You'll find all five videos covering this years challenge below. A scene in the dyno video sums it all up perfectly: a competitor leaves his nitrous on too long and the crew is treated to some ominous poppings, he leans out the window, throws both hands up and shouts, "Amer'ca!"