2008 Cadillac CTS Oxygen Sensor

First, you need to remove the front compartment sight shield and the Oil Filter cap. Then, please remove and discard the oil filter cartridge, and raise and support the vehicle. Finally, you should place a suitable drain below the oil pan drain plug, and remove the oil pan drain plug to allow the oil to drain completely.

First, you need to disconnect the battery, remove the oil filter and the A/C compressor and the power steering drive belt, disconnect the oil pressure sensor electrical connector and remove the power steering pump bolts and position the pump aside. Then, please remove the A/C compressor bolts and reposition the A/C compressor, remove the bolts securing the wire harness bracket to the Oil Filter Adapter. Finally, you should place a drain pan under the vehicle to remove the oil filter adapter bolts and the oil filter adapter.

First, you need to remove the air cleaner intake duct and open the throttle valve to inspect the Throttle Body bore and the throttle valve plate for any deposits. Then, please use a clean shop towel and Top Engine Cleaner GM P/N 1052626 or equivalent product to clean the throttle body bore and the throttle valve plate. Finally, you should install the air cleaner duct.