Black plate (18,1)
GMC Sierra Owner Manual - 2012
10-18
Vehicle Care
Replacing the Engine Air Cleaner/
Filter
1. Locate the air cleaner/filter
assembly. See
Engine
Compartment Overview on
page 10
‑
6
.
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. Take care
to dislodge as little dirt as
possible.
4. Clean the engine air cleaner/
filter sealing surfaces and the
housing.
5. Inspect or replace the engine air
cleaner/filter.
6. Reinstall the cover and tighten
the screws.
{
WARNING
Operating the engine with the air
cleaner/filter off can cause you or
others to be burned. The air
cleaner not only cleans the air; it
helps to stop flames if the engine
backfires. Use caution when
working on the engine and do not
drive with the air cleaner/filter off.