Oil Pump Drive Seal Fix by: Shaun Ewing   You Will Need: O-Ring, GM Part Number: 10477565 Coolant Carb Cleaner (for cleaning the throttle body) Various sockets and extensions   Step One: Completely remove the airbox by unbolting it and removing the intake hose, intake temperature sensor (on the airbox) and PCV tube. This will help give you more room to work.   Step Two: Disconnect the vacuum lines that are on top of the throttle body (these are all grouped together. Now, remove t