Disc Brake Pad Wear Sensor. The engine types may include 2.1L 2143CC 131Cu. V8 GAS DOHC Naturally Aspirated,4.7L 4663CC 285Cu. V8 GAS SOHC Naturally Aspirated,5.0L 4966CC V8 GA S SOHC Naturally Aspirated,5.0L 4973CC V8 GAS SOHC Naturally Aspirated,5.5L 5439CC 332Cu.