2011 Gmc Acadia Denali One Florida Owner 5year/100k Warranty Selling No Reserve on 2040-cars

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GM faces possible class action lawsuit over 8-speed transmission

General Motors has been hit with a class-action lawsuit from owners who allege the eight-speed automatic transmission found in several rear-wheel-drive Chevrolet, Cadillac and GMC models between the 2015 and 2019 model years has a defect that causes the vehicles to hesitate and jerk when accelerating or slowing down. The lawsuit was posted to ClassAction.org and spotted by GM Authority. Problems with GM's Hydra-Matic 8L90 and 8L45 transmissions have been well-documented on Internet forums and via complaints filed with the National Highway Traffic Safety Administration, with many reporting damage to their vehicles. The lawsuit was first filed in December in U.S. District Court for the Southern District of Florida but appears to have been transferred recently to New York. Autoblog sought comment from Theodore Leopold, the lead attorney for the plaintiffs. "These transmissions have a common defect," the complaint reads. "Drivers attempting to accelerate or decelerate their cars feel a hesitation, followed by a significant shake, shudder, jerk, clunk, or 'hard shift' when the vehicle's automatic transmission changes gears." The problem also occurs when the vehicles accelerate in a single gear, without shifting, the plaintiffs allege. "Drivers have reported that the shift is sometimes so violent, they feel as though they have been hit by another vehicle." The problem is believed to center on the transmission, torque converter or both. The complaint says it causes undue friction, causing hydraulic systems and gears to function improperly and sometimes leaves metal shavings throughout the transmission, leading to costly repairs and replacement of parts or the entire transmission. It says GM has known about the problems since shortly after it introduced the transmissions, and has issued 13 technical service bulletins, none of which have resolved the problem. GM declined to comment on the lawsuit. The plaintiffs say GM should have warned consumers about the issues and covered repairs under each vehicle's three-year/36,000-mile bumper-to-bumper warranty. They're seeking statewide classes in at least six states: California, Florida, Illinois, New York, Oklahoma and Texas.

2024 GMC Sierra HD prices start at $46,295, increasing $100 to $2,500

After an online reveal in October of last year, prices for the 2024 GMC Sierra HD have crept online thanks to GM Authority. The upscale heavy duty pickup gains a new-look design and a more powerful turbodiesel V8 that boosts the tow ratings every HD buyer likes to keep up their sleeves like aces. The optional 6.6-liter turbodiesel Duramax V8 increases horsepower 25 ponies to 470 and torque by 65 twists to 975 pound-feet, both numbers matching the 2024 Chevrolet Silverado HD's diesel output. The torque comes with more useful delivery as well, GMC saying it increased low-end twist by about 25% thanks to a new turbocharger. Buyers who go for the 6.6-liter gas V8 will command 401 hp and 464 lb-ft. Both engines run output through a ten-speed automatic. One the gasser, the new gearbox replaces a six-speed auto. The standard 2500 HD's towing capacity checks in at 22,500 pounds (a 4,000-pound improvement), the 3500 HD capable of towing up 36,000 pounds. Broadly speaking, designers drew a more angular front end with a new-look grille, sharper-looking lights, and a redesigned bumper. New wheels are part of the update as well; the 3500 HD dually gets 18-inch polished aluminum wheels, and 22-inch units are optional on single-rear-wheel trucks. Finally, the color palette grows with six optional shades called Titanium Rush Metallic, Sterling Metallic, Volcanic Red Tintcoat, Redwood Metallic, Meteorite Metallic and Downpour Metallic. Configuration variables include Regular, Extended and Crew cabs, and Pro, SLE, SLT, AT4, AT4X, Denali and Denali Ultimate trims. The AT4X is late availability, the Denali Ultimate is new for 2024. The Denali Ultimate comes with the 6.6-liter turbodiesel V8, a trim-specific grille, 20-inch machined-aluminum wheels with high-gloss black accents, power-operated running boards, leather upholstery, wood interior trim, massaging front seats, a Kicker sound system and exterior emblems featuring Alaska's 20,310-foot Mount Denali.  Pricing is up by $100 to to $2,500 depending on trim.

GMC Safari GT, a rad-era hauler with custom-van swagger

The GMC Safari van, along with its Chevy Astro sibling, performed yeoman service ferrying passengers and hauling cargo for two decades starting in 1985. But one special variant, the Safari GT — and, at Chevrolet, the Astro RS — added an unexpected dollop of swagger. Those vans had a custom look that was straight out of the '70s "sin bin" era. One of those Safari GTs is up for grabs right now, fittingly, on the RADforsale auction site. The option package at both GMC and Chevrolet was coded BYP, the GT Sport Package, and it appears to have been offered from 1990 to 1994. Its defining element was the two-tone paint treatment shown here, with black on the lower body and the greenhouse, and your choice of white, silver, blue, gold, or red as the main body color. Blanked out rear quarter windows and "simulated air exhaust louvers" behind the middle side windows added a further bit of style (long-wheelbase XT versions skipped that flourish). Also included were a front air dam, blacked-out grille, aluminum rally wheels, and a sport suspension. This 1991 Safari GT appears to have been further sportified with a lower-body aero kit, a rooftop spoiler, and aftermarket wheels. This rear-wheel-drive, standard-wheelbase model is powered by a 4.3-liter V6 hooked to a four-speed automatic transmission. It has traveled a relatively low 126,000 miles and looks to be in exceptionally good shape — particularly given that most of these vans lived a hard life. At this writing, bidding stands at $5,100 with bidding to end May 21. That suggests this Astro GT will bring a strong price — but if you want one, you may be hard-pressed to find another.