--- title: "GM Settles Class-Action Suit Over Trucks That Allegedly Can’t Run on US Diesel" description: "Owners of 2011-2016 Chevy and GMC diesels will reportedly be reimbursed for repairs, while lawyers will split $15 million." date: "2024-08-07" modified: "2024-08-07" authors: - name: "Nico DeMattia" job_title: "Contributing Writer" link: "https://www.thedrive.com/authors/nico-demattia" url: "https://www.thedrive.com/news/gm-settles-class-action-suit-over-trucks-that-allegedly-cant-run-on-us-diesel" categories: - "GM News" - "News" - "News by Brand" - "Trucks" tags: - "Chevrolet" - "GMC" - "pickup" - "sierra hd" - "Silverado 2500HD" --- # GM Settles Class-Action Suit Over Trucks That Allegedly Can’t Run on US Diesel ![Close-up of Duramax badge on Chevrolet Silverado 2500 HD.]() *\Chevrolet\* General Motors has been embroiled in a class-action lawsuit for years, regarding Duramax diesel engines and their supposedly faulty fuel pumps. Finally, according to *[CarComplaints]()*, GM has settled with the plaintiffs, but the vast majority of the payout will go to the lawyers. The lawsuit claims that Duramax diesel engines, used in [Chevrolet]() and GMC vehicles from 2011 through 2016, use Bosch fuel pumps that aren't designed for American diesel fuel. Rather, the Bosch fuel pumps are allegedly engineered for European diesel, which is thicker with more lubricants. Thinner American diesel could cause air pockets inside the pumps, creating metal-on-metal contact. Such contact may not only damage the fuel pump but also send metal shavings into the engine, destroying it. Additionally, if the fuel pumps were replaced, dealerships would install the same type of pump, continuing the potential for catastrophic engine damage, the suit claims. ![]() Back in 2019, [GM told *The Drive*]() that it didn't “believe the lawsuit has merit.” Now, GM is paying a settlement. However, GM is only paying the 11 plaintiffs $5,000 each, while the law firms representing them get to split $15 million. GM is also reimbursing customers who've had to pay for fuel pump-related repairs out of pocket. All current owners of affected [Duramax]() vehicles will get future warranty coverage regarding Bosch CP4 fuel pumps. The extended warranty will run for up to 12 months from the final approval date of the class action lawsuit or 200,000 miles from the vehicle's original purchase date (whichever comes first), yet it'll still require to owners to foot half the bill for all repairs. Former owners might also receive compensation for overpaying for their trucks. There's another big caveat, though. The settlement only helps customers who bought trucks from seven different states: California, Florida, Illinois, Iowa, New York, Pennsylvania, and Texas. According to *CarComplaints*, GM still denies any wrongdoing and the claim that the trucks are defective. *The Drive* reached out to GM for a comment and will update this story if we receive more information. *Got tips? Send 'em to tips@thedrive.com* ## Author Nico is a writer and reviewer from New Jersey who probably thinks he’s a lot funnier than he actually is. His love of cars began when he was just a kid playing Gran Turismo 3, grinding out enough race wins with a Mazda Miata to save up for an in-game RUF 911. That passion for small, lightweight sports cars drove his desire to learn more about the industry, get his hands on as many cars as he could, and bring those experiences to life on the page. He cut his teeth writing about BMWs, Volkswagens, and Audis, mostly, and has owned far too many of each. He’s on his fourth 3 Series sedan, but all of his old, cheap German cars have forced him to learn more about car maintenance than his mechanical capability can handle. Too many late nights have been spent scrambling to get a car running by morning so he could get to work. For some reason, he never seems to learn that old Bimmers probably aren’t the best daily drivers. But he loves more than just old German cars. He’ll gladly drive and discuss anything with four (or even three) wheels. Cars aren’t his only passions, though. Nico is also a big nerd and loves movies, video games, comic books, and cares far too much about the New York Giants. So don’t be surprised if you see football references or dumb, obscure movie quotes in any of his car reviews. ### Author social links [Instagram]() [LinkedIn]()