CHEVROLET 2011 HHR - Manual (Page 310)

Black plate (22,1) Chevrolet HHR Owner Manual - 2011
How to Inspect the Engine Air
Cleaner/Filter
See Engine Compartment Overview on page 6‑14 for
the location of the engine air cleaner/filter.
To inspect the air cleaner/filter remove the filter from the
vehicle and lightly shake the filter to release loose dust
and dirt. If the filter remains covered with dirt, a new
filter is required. Never use compressed air to clean the
filter.
Because this operation can be a little difficult, you
may choose to have this done at the dealer service
department.
To inspect or replace the filter, do the following:
1. Disconnect the Mass Air Flow sensor, PCV hose,
and both ducts.
2. Pull the entire system from the top of the engine.
3. Turn the system over and place it on a soft,
non‐abrasive surface.
4. Remove the screws that hold the housing and
cover together and lift off the housing.
5. Inspect or replace the engine air cleaner/filter.
6. Reverse the steps to reinstall the system. Be sure
to reinstall the housing tightly.
{ 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.
Notice: If the air cleaner/filter is off, dirt can easily
get into the engine, which could damage it. Always
have the air cleaner/filter in place when you are
driving.
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