GMC 2010 Sierra - Manual (Page 483)

Replacing the Engine Air Cleaner/Filter
1. Locate the air cleaner/filter assembly. See Engine
Compartment Overview on page 6‑16.
2. Loosen the four screws on the cover of the
housing and lift up the cover.
3. Remove the engine air cleaner/filter from the
housing. Care should be taken to dislodge as little
dirt as possible.
4. Clean the engine air cleaner/filter sealing surfaces
and the housing.
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