The contact owns a 2021 Chrysler Pacifica. The contact stated that while driving at various speeds, the vehicle hesitated while accelerating with the accelerator pedal depressed. The check engine warning light was illuminated. The vehicle was taken to a local dealer where it was diagnosed and determined that the rocker arm, lifters, and the right intake camshaft needed to be replaced. The vehicle was not repaired due to parts not being available. The manufacturer was not made aware of the failure. The failure mileage was approximately 101,000.