Buick 2003 LeSabre Owner's Manual page 271

2. Remove the air intake hose that is snapped over
the throttle body by pulling the hose upward and
away from the throttle body which
is
located
near the top of the engine.
3. Disconnect the
electrical connector
from the air intake
hose. This will allow
you to lift the rear
portion of the engine
air cleanedfilter
housing.
4. After detaching the hose from the throttle body,
pull back the entire rear portion of the engine
air cleaner/filter housing by pulling upward and
rearward.
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