International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. 213-3522 AC Delco Knock Sensor for Chevy Olds Le Sabre NINETY EIGHT Impala Buick ACDelco 213-3522 Ignition Knock (Detonation) Sensor For Sale Online GM Knock Sensor Ignition Knock (Detonation) Sensor GM Parts 213-3522 ; Returns. Accepted within 30 days. Seller pays return shipping. ; Condition: NewNew ; Product Identifiers This original equipment ignition knock sensor has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors. ACDelco GM Original Equipment Ignition Knock Sensor is designed for optimal performance and reliability in your GM vehicle The sensor creates a voltage signal based on the vibrations caused by erratic air/fuel mixture combustion; the engine control module uses this signal to adjust the ignition timing and air/fuel mixture.
