Suburban, Yukon XL. 5.3l. Avalanche. 1/2 ton. 6.0l. Hummer H2. Escalade EXT, esv. Helps reduce harmful pollutants from entering the atmosphere Captures fuel vapors to be re-burned in the engine This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Purge Valve

Controls vapor flow from canister to engine

ACDelcoâ„¢ Vapor Canister Purge Solenoid

Location-Vapor Canister. Without diesel. Silverado, sierra. 3500. Yukon XL, Suburban. 3/4 ton. 3.5L, sedan. 2.2L. Hummer H2. 3.9L, sedan.

Oxygen Sensor, Rear

LaCrosse. Grand Prix. Without supercharger. 3.8L, california. Rear. 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 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

Oxygen Sensor, Front

All models. 5.3l. Rear, 5.3l. 5.3L, front of converter. 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