Walker 242-1039 Ignition Knock (Detonation) Sensor

Overview of Walker Products Ignition Knock Sensor 242-1039

The Walker Products Ignition Knock (Detonation) Sensor 242-1039 is designed to detect engine knock and optimize ignition timing for improved engine performance. This sensor is compatible with a range of GM vehicles including Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, and Pontiac models.

• Length: 54.48 mm
• Terminal Type: Bullet
• Connector Quantity: 1 (Round, Female)
• Terminal Quantity: 1 (Male)
• Threaded End Diameter: 10 mm
• Mounting hardware and wiring harness not included

Product Line Details: Walker Products

Walker Products specializes in emission control components, providing reliable sensors and parts that meet OEM specifications. The 242-1039 ignition knock sensor is part of their sensor lineup, engineered to maintain precise engine timing and reduce harmful emissions in compatible vehicles.

Detailed Product Description

This ignition knock sensor features a 54.48 mm length and a 10 mm threaded end diameter, ensuring proper fitment and secure mounting on the engine block. The sensor includes a single bullet-type terminal with a male terminal gender and a female round connector, designed for straightforward electrical connection. While mounting hardware and wiring harness are not included, the sensor is engineered for compatibility with factory components on select GM models.

Compatible Vehicles and Applications

• Buick Ascender
• Cadillac CTS, Escalade, Escalade ESV, Escalade EXT
• Chevrolet Avalanche 1500, Camaro, Corvette, Express 1500/2500/3500, Silverado 1500/2500/3500, Suburban 1500/2500, Tahoe, Trailblazer EXT
• GMC Envoy XL, Envoy XUV, Sierra 1500/2500/3500, Yukon, Yukon XL 1500/2500
• Hummer H2
• Isuzu Ascender, Rainier
• Pontiac Firebird, GTO, SSR

Common Issues Addressed by This Sensor

• Engine knocking or pinging during acceleration
• Reduced engine performance due to improper ignition timing
• Check engine light triggered by knock sensor fault codes
• Increased emissions from inefficient combustion
• Potential engine damage from undetected detonation

Installation Notes and Tips

Ensure the engine is cool before installation. The sensor mounts using a 10 mm threaded end; verify the mounting surface is clean and free of debris. Connect the bullet-type terminal securely to the corresponding female round connector. Since mounting hardware and wiring harness are not included, reuse existing components or source compatible parts separately. Proper torque specifications should be followed to avoid sensor damage.

Quality Assurance and Warranty

Walker Products ignition knock sensors are manufactured to meet or exceed OEM standards for durability and performance. While specific warranty details for part number 242-1039 may vary, Walker Products typically offers coverage against defects in materials and workmanship. Consult product documentation or supplier information for exact warranty terms.