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Your cart is empty.An ACDelco GM Original Equipment Ignition Knock (Detonation) Sensor monitors the engine for pinging or spark knock, and is a GM-recommended replacement for your vehicle’s original component. 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. 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.
Bob C.
Reviewed in the United States on December 26, 2024
Had to order one from the dealership. This one was junk out of the box.
Crystal Audas
Reviewed in the United States on September 19, 2022
GM parts never let us down. My husband easily was able to replace the parts with these in my son's car. Amazon made it easy offering these parts.
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