2005 Buick Park Avenue Oxygen Sensor

First, you need to remove the left and right valve rocker arm cover, and the valve rocker arm pedestal retaining bolts. Then, please remove the pedestal, the rocker arm assembly, and the Pushrods. Finally, you should clean the bolts of all thread adhesive, and clean and inspect the valve rocker arms and pushrods.

First, you need to turn OFF the ignition switch and remove the fuel injector sight shield. Then, please remove the Spark Plug Wires from the spark plugs at the rear and front of the engine, remove the spark plug wires from the ignition coils, remove the spark plug wire retaining clips from the rear, front, and top of the engine, and remove the spark plug wires from the engine. When replacing the spark plug wires, you should transfer the boot heat shields, the spark plug wire conduit, and the spark plug wire retaining clips.

First, you need to remove the air cleaner intake duct. Then, please remove the snap ring from the Throttle Body. Finally, you should remove the throttle body air inlet screen from the throttle body.