EGR Valve Vacuum Pump: Removal
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the air cleaner. See AIR CLEANER ASSEMBLY under AIR INDUCTION SYSTEMS. Loosen the charged air cooler outlet duct to clamp. Do not use a screwdriver or other tool to pry the hose loose. The hose can be torn or damaged. Loosen the hose by twisting. Remove the charged air cooler outer duct.
- Remove the vacuum line from the Exhaust Gas Recirculation (EGR) valve vacuum pump. Remove drive belt by installing a 3/8 inch breaker bar into the tensioner opening and rotate the tensioner counterclockwise. Remove the drive belt from the drive pulleys. Slowly release the tension on the tensioner arm.
- Remove EGR vacuum pump bolts. See Fig 1. Remove the EGR vacuum pump.