ACDelco GM Original Equipment 12636736 Ignition Knock (Detonation) Sensor sold2023 Tips：In cold weather

Tips：In cold weather

Rear Left/Right

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even for those with limited mechanical experience

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ACDelco GM Original Equipment 12636736 Ignition Knock (Detonation) Sensor sold2023 Tips：In cold weatherACDelco GM Original Equipment 12636736 Ignition Knock (Detonation) Sensor 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 vehicles 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