NHTSA Complaint #11699245 — 2019 CHEVROLET SILVERADO 1500

"The vehicle has developed a recurring ticking/knocking noise in the engine, worsening under acceleration, accompanied by excessive oil consumption. This is a repeat issue after a warranty repair on June 6, 2022, where all 8 lifters on the right bank were replaced due to AFM/DFM lifter failure. I believe the current problem is caused by metal debris from the initial failure scoring cylinder walls, rings, and bearings, leading to lower-end damage. GM denied coverage under Special Coverage Adjustment N242498000 despite the prior repair and matching symptoms in bulletin PIP5623. Johnson Motor Sales quoted $14,893.89 for engine replacement. The noise and oil loss pose a safety risk of sudden engine failure or loss of power while driving, potentially causing a crash."