Facet 9.3238 Ignition Knock (Detonation) Sensor

Ignition Knock Sensor for GM Applications

Facet 9.3238 is an ignition knock (detonation) sensor for select Buick, Chevrolet, GMC, Pontiac, and Saturn vehicles. It monitors engine vibration signals so the engine control system can respond to knock-related conditions and maintain proper ignition timing.

Key Features

• Ignition knock (detonation) sensor for emission control and engine management systems
• Direct-fit application coverage for select 2009-2015 GM vehicles
• Fits 2013-2015 Buick Verano, N/A
• Fits 2011-2013 Buick Regal, N/A
• Fits 2010 Chevrolet Equinox, N/A
• Facet 9.3238 for service replacement on listed applications

Detailed Description

Facet 9.3238 is used in engine control systems that rely on knock detection to identify abnormal combustion events. This sensor is listed for a wide range of GM models, including Buick Regal, Buick Verano, Chevrolet Malibu, Chevrolet HHR, Chevrolet Cobalt, GMC Terrain, Pontiac G6, and Saturn Vue. For buyers searching for a knock sensor for 2009-2010 Chevrolet Malibu or a detonation sensor for 2010 GMC Terrain, this part number provides application-specific coverage.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Knock sensor fault codes
• Engine pinging or detonation-related drivability concerns
• Reduced ignition timing control from a failing sensor signal
• Check engine light conditions tied to knock detection circuits
• Rough running caused by inaccurate combustion feedback

Installation Notes and Tips

Verify the engine and model-year match before ordering, since fitment varies by vehicle and in some cases by build date or emissions configuration. Confirm connector style, mounting location, and sensor placement against the original part before installation. Facet 9.3238 is listed for N/A position applications, so use the vehicle catalog details to confirm the correct engine-side location.

Quality Assurance

Facet is an established aftermarket brand for engine management and emission control components. Part number 9.3238 is cataloged for the listed GM applications and should be matched to the vehicle’s exact year, make, model, and engine configuration before installation.