Description: GM Original Equipment Ignition Knock (Detonation) Sensors monitor the engine for pinging or spark knock, and are GM-recommended replacements for your vehicle's original components. These sensors create a voltage signal based on the vibrations caused b ...

Description: All models. 8.1l. All models. 4.3l. S-series. 4.3l. Astro, Safari. 4.3l. 6 cylinder. Code Yfky Yfpz Yfyy. 5.3L. 5.7L. GTO. This part requires programming and/or special setup procedures GM Service Information describes the procedures and special tools needed to ensure proper operation in the vehicle Dictates the operation of your vehicle's vital systems, which is critical to the performance of your vehicle

Description: GM Genuine Parts Engine Camshaft Position Sensors are designed, engineered, and tested to rigorous standards, and are backed by General Motors.  These sensors monitor the rotational position of the camshaft(s). They provide a signal to the engine cont ...

Description: Helps keep engine timing and fuel injection running in sync
Helps provide proper alignment, positioning, and spacing for easy installation
Synchronizes engine valves and pistons for excellent engine performance