Facet 9.3238 Ignition Knock (Detonation) Sensor

Reliable Ignition Knock Sensor for Select GM Vehicles

The Facet 9.3238 Ignition Knock (Detonation) Sensor is designed to provide accurate knock detection for improved engine performance. Compatible with various Buick, Chevrolet, GMC, Pontiac, and Saturn models, this sensor helps maintain optimal combustion and engine efficiency.

• Compatible with Buick LaCrosse, Verano, Regal, and Lucerne models
• Fits Chevrolet Cobalt, Malibu, Equinox, HHR, and G6 vehicles
• Suitable for GMC Terrain and Vue models
• Also fits Pontiac G5, G6, Solstice, and Sky
• Designed for Saturn Aura and Vue models

Product Overview and Functionality

The Facet 9.3238 ignition knock sensor detects engine detonation or knocking by monitoring vibrations in the engine block. This sensor sends signals to the engine control unit (ECU) to adjust ignition timing, preventing engine damage and ensuring smooth operation. Proper knock sensor function is critical for maintaining fuel efficiency and reducing emissions in vehicles such as the Chevrolet Malibu and Buick LaCrosse.

Common Applications and Problem Resolution

• Prevents engine knocking and pinging under load
• Helps avoid engine misfires related to detonation
• Supports optimal ignition timing adjustments
• Reduces risk of engine damage from uncontrolled knock
• Improves overall engine performance and fuel economy

Installation Notes and Tips

When installing the Facet 9.3238 knock sensor, ensure the engine is cool and disconnect the battery before starting. Locate the sensor on the engine block, typically near the cylinder head, and replace the old sensor with the new unit. Torque the sensor to manufacturer specifications to avoid damage. Verify proper electrical connections and clear any diagnostic trouble codes after installation.

Quality Assurance and Warranty Information

Facet manufactures the 9.3238 ignition knock sensor to meet or exceed OEM standards for durability and performance. Each sensor undergoes rigorous testing to ensure reliable operation in compatible Buick, Chevrolet, GMC, Pontiac, and Saturn vehicles. Warranty coverage details are available through Facet and authorized distributors.