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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.

2016 Chevrolet Spark lights up New York

The little Spark has been somewhat of a surprising entry in the modern Chevy lineup in the US. Given its diminutive stature, you might have expected the slightly larger Sonic to cannibalize the tiny sibling's sales, but that hasn't happened. The Bowtie moved 39,159 Sparks in the US in 2014, a 14.7 percent boost from the previous year. Now at the 2015 New York Auto Show, the latest generation is being unveiled with a new engine and much improved styling. Replacing the current 1.2-liter four-cylinder is an all-aluminum 1.4-liter unit making 98 horsepower. That still doesn't sound like much, but it's 16 percent more than the 2015 Spark. The new mill can be connected to either a five-speed manual or a continuously variable transmission with which Chevy estimates 40 miles per gallon highway fuel economy. The 2016 Spark also gets a longer wheelbase and 1.6-inch lower overall height. Combined with more elliptical headlights at the front, the changes make for a somewhat more sleek appearance than the current, boxy model. The platform underneath is more rigid as well, and Chevy claims the latest underpinnings mean better handling and lower NHV levels inside. The little hatch isn't growing up too much, though, and gets a trio of new colors that sound like jellybean flavors: Toasted Marshmallow, Kalamata and Splash. Chevy is packing the interior with better quality materials and improved tech. Chevy's latest seven-inch MyLink system sits in the center stack with a capacitive touchscreen, and it now comes with a physical volume control and other buttons for easier use. All models also get a rearview camera, and a LCD instrument cluster remains in front of the driver. The available suite of safety systems includes Forward Collision Alert, Lane Departure Warning and Side Blind Spot Alert. The 2016 Spark goes on sale in the US in the fourth quarter of 2015 and is produced in South Korea. Expect a gallery showing off all its new styling from the New York show floor soon.

Next-gen GMC Sierra spied with diesel power

The next generation of GM trucks is arriving soon, and we're expecting a huge leap forward over the current lineup. The Chevy Silverado and the GMC SIerra sell extremely well, but haven't done much to move the segment forward in a long time. The Ford F-150 has an all-aluminum body and turbocharged V6 power. The Ram 1500 gained a diesel and coil spring suspension. These spy shots show that diesel may be in the cards for GM. Some quick shots and copious use of flash show what is most likely a tank for diesel exhaust fluid and a diesel particulate filter, both necessary equipment for any modern diesel. It's unclear what form factor that engine will come in, though GM has a number of engines to choose from, including the 2.8-liter inline four that's found in the Colorado and Canyon, though that may be a little light duty for the Silverado and Sierra. Other rumors surrounding the trucks suggest a move to an aluminum cab while retaining a steel bed. That seems like a reasonable move for GM, even if the company was attempting to shame Ford for its move to aluminum a few years ago. Look for more news as early as the Detroit Auto Show in January. Related Video: Featured Gallery 2019 GMC Sierra spy shots View 21 Photos Image Credit: Spied Bilde Spy Photos Chevrolet GMC Truck