The nationwide law firm, Fegan Scott, has filed a sweeping class action lawsuit against General Motors (GM) for selling nearly a million trucks equipped with dangerously defective engines. The defective L87 6.2L V8 engine is found in some of GM’s most popular trucks, such as the Chevrolet Silverado, GMC Sierra, Cadillac Escalade, Chevrolet Tahoe, Chevrolet Suburban, and GMC Yukon. The complaint, filed in the U.S. District Court for the Eastern District of Michigan, alleges that GM knowingly sold hundreds of thousands of vehicles with a serious engine defect that can cause catastrophic engine failure in brand new trucks and pose grave safety risks.

According to the lawsuit, GM marketed these vehicles as durable, high-performance trucks but failed to disclose a defect in the L87 engine’s connecting rod bearings. The defect manifests as faulty bearings that cause the crankshaft, connecting rods, and engine bearings to experience catastrophic failures resulting in breaching of the engine block by the connecting rod and/or engine seizure. This defect is extremely dangerous because it can cause the loss of motive power while driving at high speeds, increasing the risk of a crash. Owners and lessees have had to pay tens of thousands of dollars to repair or replace the engines in vehicles with as little as 10,000 miles block entirely as a result of this defect.

“This isn’t just about bad engines—it’s about GM putting profit before safety,” said Jonathan Lindenfeld, an attorney at FeganScott. “For years, consumers were led to believe they were purchasing reliable, top-tier trucks. In reality, many of them now face unexpected and dangerous engine failures, massive repair bills, and significant loss in vehicle value.”

In April 2025, GM issued a safety recall related to the L87 engines, admitting that the defect can result in engine damage and cause crashes. However, the complaint alleges that GM’s proposed fix—primarily replacing engine oil with a higher viscosity version in certain vehicles—fails to address the root cause of the defect and leaves drivers at risk.

If you or someone you know has owned or leased a:

· 2019-2024 Chevrolet Silverado 1500,

· 2021-2024 Chevrolet Tahoe,

· 2021-2024 Chevrolet Suburban,

· 2019-2024 GMC Sierra 1500,

· 2021-2024 GMC Yukon,

· 2021-2024 GMC Yukon XL,

· 2021-2024 Cadillac Escalade, or

· 2021-2024 Cadillac Escalade ESV

FeganScott urges you to contact us to learn more about your rights as a potential class member at: www.feganscott.com/contactus