2008 Cadillac XLR Oxygen Sensor

You should position the oil drain pan under the engine oil drain plug and remove the engine oil drain plug, and the Oil Filter.

You should remove the supercharger, and the rear supercharger inlet duct and seal, inspect the Throttle Body bore and the throttle body plate for deposits, and clean the throttle body bore and the throttle plate using a clean shop towel with GM top engine cleaner, P/N 1052626 or AC Delco carburetor tune-up conditioner, P/N X66P, or equivalent product, and install the rear supercharger inlet duct and seal and the supercharger.

You should remove the right camshafts, and the starter motor, install the EN 46326 flywheel holder, remove the spark plug from the cylinder being worked on, install the base plate of the J 44211 over the spark plug hole of the cylinder to be serviced, the J 39313 in the spark plug hole, and the arm and swivel nut of the J 44211 over the stud corresponding to the valve to be serviced, and remove the Valve Spring retainer and valve spring.