Beasley Allen of Atlanta and Montgomery, Alabama, is part of a legal team that has obtained class action certification in a case against General Motors Co. over allegations of faulty piston rings causing engine burnout.

The complaint was filed in 2016 in U.S. District Court for the Northern District of California and has been amended five times since then. Judge Edward M. Chen issued a 93-page order Friday certifying class claims for three bellwether plaintiffs in California, North Carolina and Texas.