M.A.P Sensor

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 This GM Genuine part is designed, engineered and tested to rigorous standards, and are backed by General Motors

Exhaust Gas Re-circulation (Egr) Valve

Without diesel. 7.4L, all. With 7.4L, gas. Express, savana. 7.4l. Modulates the flow of exhaust gas into the intake manifold to help reduce nitrogen oxide (NOx) emissions

Oxygen Sensor

Without diesel. Gas engines. With gas. 3 wire. Astro, Safari. 4.3l. Front of converter. All models. 3.8l. To converter. Heated (3 wire). Detects oxygen content in the exhaust gases to help optimize emissions This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors