AFM lifter and camshaft failure
ENGINE
15 NHTSA complaints · 2023-05 → 2026-08
“6.2L LT1 GEN V AFM 138880 miles. Driving at highway speed no warning engine CATASTROPHIC FAILURE. Simotanious reaction first check engine light,no oil pressure,limp mode, piston connectioning rod thru side of block in 2seconds”
“I have experienced engine failure in my 2014 Silverado 6.2L on 3 separate occasions. All caused by the AFM system. Rockers lock into the wrong position while transforming from 4 cylinder to 8 cylinder operation”
“Lifter failure happened while traveling home from Florida to SC. I was towing a vehicle and barely made it home. Having to drive at low speeds on the interstate put me at risk for accident”