A new lawsuit claims certain 2011-2014 GM vehicles have defective engines. Specifically, the engine is the Generation IV 5.3 Liter V8 Vortec 5300 LC9. According to the plaintiff, Anthony Nalley, GM made this engine available in the following:
- Chevrolet Avalanche
- Chevrolet Silverado
- Chevrolet Suburban
- Chevrolet Tahoe
- GMC Sierra
- GMC Yukon
- GMC Yukon XL
As alleged in the complaint, the engine “consumes an abnormally and improperly high quantity of oil that far exceeds industry standards for reasonable oil consumption.” This, in turn, causes low oil levels, insufficient lubricity levels, and internal engine component damage. As further alleged, the main cause of this defect is that the piston rings fail to keep oil in the crankcase.
The lawsuit claims GM has long known of the defect and resulting engine damage. Such sources of knowledge include consumer complaints, contends plaintiff.
Mr. Nalley alleges his 2011 GMC Sierra has the defect, requiring him to add oil every 2,000 miles and causing other problems such as rough engine idle, a noisy valvetrain, and spark plug fouling. He raises legal claims including violations of Georgia’s Uniform Deceptive Trade Practices and Fair Business Practices Acts and breach of warranty.
The complaint asks the court order GM to pay damages and restitution.
The case is Anthony Nalley v. General Motors LLC, case number 1:21-cv-04174-WMR, in the United States District Court for the Northern District of Georgia.