Cadillac 2008 CTS - Manual (Page 304)

3. Disconnect electrical connector from air box.
4. Loosen the screw on the clamp holding the air outlet
duct in place. Do not pry the clamp off. position the
duct aside.
5. Remove the rubber hose from the air cleaner
housing mounting arm. Position the rubber hose
aside.
6. Remove the three air cleaner housing cover
screws.
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