ACDelco GM Original Equipment 12636736 Ignition Knock (Detonation) Sensor sold2025 2 x clamps

2 x clamps

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ACDelco GM Original Equipment 12636736 Ignition Knock (Detonation) Sensor sold2025 2 x clampsACDelco 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