1994 Gmc Yukon, 4wd, Sport Utility, Other, Pickup, Cars, Trucks on 2040-cars

Auto blog

2024 GMC Sierra 1500 AT4X makes Duramax diesel standard

Changes are afoot for the 2024 GMC Sierra 1500 lineup. The one ringing the biggest bells for the off-roading crowd is the engine swap headed to the AT4X trim. Right now, if you want an AT4X you've got Hobson's choice of engines: The 6.2-liter EcoTec V8 with 420 horsepower and 460 pound-feet of torque. Next year, the 3.0-liter Duramax turbodiesel inline-six that's standard equipment on the AT4 and Denali Ultimate trims becomes the standard engine on the AT4X. The oil-burner makes 305 hp and 495 lb-ft., sent through the same ten-speed automatic the 6.2 V8 is yoked to. GM said around 20% of buyers have checked the Duramax box when buying a Sierra 1500 since the automaker released the upgraded engine for the 2023 model year — it's also offered on the SLE, Elevation, SLT, and Denali trims. The percentage should grow thanks to the diesel's low-speed grunt being one of the best "force multipliers" when traipsing over and through particularly challenging corners of the woods. The 6.2-liter will take the exhaust note crown over the diesel after the introduction of an active exhaust system with a Sport mode exclusively for the 6.2. Assuming no more changes to engine lineups before the 2024 Sierra arrives, the SLT, AT4, Denali, Denali Ultimate, and AT4X will have access to the active exhaust option.   GM Authority says the Duramax is getting another maximal friend in 2024, too. The 2.7-liter Turbo High-Output four-cylinder makes 310 hp and 430 lb-ft and is standard equipment on the entry-level Pro trim. the SLE, and Elevation trims will be renamed "TurboMax," which sounds like an Autobot, and that's not a bad thing. GM applied to trademark the name in January. The new moniker is headed to the Chevrolet Silverado as well, and we'd bet on exterior badging to let the world know.  Elsewhere around the Sierra, there will be two new exterior colors, Downpour Metallic and Thunderstorm Gray, mixable and matchable with two new aluminum wheel designs. And between those wheels, power retractable steps will be available for the Denali, Denali Ultimate, AT4 and AT4X trims. We'll be waiting to see how the steps differ from the GMC MultiPro Power Steps available now for $1,195.  Related video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

2023 Detroit Auto Show Editors' Rankings

The 2023 Detroit Auto Show was back in its traditional location, though in its fall spot in the calendar, and it was another pretty quiet event. By our count, only five new models, or model lines, were revealed and brought to the floor; all of which came from Detroit's own car companies. Still, some of them were quite significant, and the types were diverse. Naturally, we also had our favorites. So take a look to see how we ranked the reveals of the Detroit Auto Show. 2025 Cadillac CT5 View 15 Photos 5. 2025 Cadillac CT5 The refresh for the 2025 Cadillac CT5 is no great revelation, because it doesn’t have to be. An already solid, attractive design means only light tweaks were made to its appearance, and the new front fascia and redesigned lights just make the CT5 just that much more aggressive. So what was missing from the current model? Apparently, the answer was a gorgeous 33-inch curved LED display serving as both infotainment and instrument cluster. It has touchscreen capability to both the right and left sides of the steering wheel, and provides 9K resolution. Update some of the safety and driver assist tech, and — boom — the CT5 is properly modernized. Now bring on the updated Blackwing. –Senior Editor, Green, John Snyder 2024 Jeep Gladiator Live View 10 Photos 4. 2024 Jeep Gladiator Jeep carved out plenty of time for what is essentially a no-brainer mid-cycle refresh, but thereÂ’s one among us who is easily swayed: Me. I dumped the maximum number of points allotted on the 2024 Gladiator with only three words of explanation: "I like Jeeps." But this is kind of a big deal. The Gladiator pulled a lot of weight for Stellantis during the pandemic by providing an alternative to pickup buyers while Ram dealers were scraping the bottom of the supply barrel. To be fair, we're probably giving the Gladiator a bit of advance credit here for its promise to deliver a 4xe variant in 2025, but who else is talking about their PHEV pickup plans? Your move, Ford. –Associate Editor Byron Hurd. 2024 GMC Acadia AT4 View 17 Photos 3. 2024 GMC Acadia The 2024 GMC Acadia is the one reveal from this yearÂ’s Detroit Auto Show that was actually a totally new vehicle, and as far as three-row SUVs go, GMC aced it. The exterior has its own personality separate from its Chevrolet Traverse twin. Its AT4 trim is legit with more ground clearance, a torque-vectoring rear diff and sweet orange marker lights on the fenders.

GM opens official investigation into C8 Corvette transmission leaks

In March 2020, a month after Chevrolet began customer deliveries of the 2020 C8 Corvette, a GM dealer technician created a Reddit thread about a leaking gearbox in a Corvette with 32 miles. That car hadn't even been sold yet. Since then, as a search of "C8 Corvette transmission leak" shows, it's been tales of woe for some owners. Something in the Tremec TR-9080 transaxle in the back of the mid-engined Corvette doesn't work as it should, the fault able to cause codes that the transmission needs service, or that the driver needs to shift to park. In some cases, the battery would die because of follow-on issues after the initial transmission code, that code preventing the car from powering down. As Autoevolution reports, GM filed paperwork with the National Highway Traffic Safety Administration in August to look into what's going on. Between forum threads and GM's investigation document, there are several issues mentioned. The most common appears to be the dual-clutch transmission leaking fluid due to gasket failures like the one suffered by one owner at 858 miles, and another for an owner currently enduring a second leaking transmission. The Midengined Corvette Forum reported that Chevy engineers redesigned the TR-9080 pan, fitting Corvettes with the new unit at some point in the 2021 model year. The original pan was stamped steel unit affixed to the engine with two studs and 13 bolts, plus "reinforcement plates." The updated pan is said to be a cast aluminum unit affixed with two studs and 17 bolts, omits the reinforcement plates, and gets a new machined new groove around its edge to seat the gasket seal. The GM paperwork now at the NHTSA mentions a P1789 code, and says one reason for it could be "debris on the park position sensor magnet causing an incorrect position reading to the TCM." This might be caused by another issue mentioned in forums, which is clogged transmission filters. GM gives instructions for returning transmission filters to the company, and a poster on one forum said the Corvette tech at the dealer where he bought his Corvette told him the automaker "requires every used transmission filter to be returned to GM."  Whatever's going on, the problems haven't stopped, and they go beyond the P1789 code. Over the weekend, a 2022 Corvette owner posted on Corvette Forums that he got a check engine light on his car after just 850 miles.