Buick 2005 LeSabre Owner's Manual page 259

To inspect or replace the engine air cleaner/filter do
the following:
1. Lift the latches on the engine air cleaner/filter
housing cover.
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.
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