Removal Procedure
- Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
- Disconnect both the air inlet and air outlet pipe from the secondary air injection reaction (AIR) pump.
- Lower the vehicle.
- Remove the cylinder head. Refer to Cylinder Head Replacement in Engine Mechanical - 4.2L.
- Remove the bolt and fir-tree fasteners securing the AIR pipe to the cylinder head.