Vehicle Care

How to Reinstall Engine Air Cleaner/Filter

~1min read

1. Install the air cleaner into the air cleaner housing. The outer air cleaner filter seal must be fitted properly in the air cleaner housing.

2. Align the air cleaner housing cover tabs to the air cleaner housing.

3. Install the air cleaner housing cover.

4. Install the air cleaner housing cover screws.

5. Install the hose to the air cleaner housing mounting arm. The hose must be routed correctly.

6. Install the air cleaner outlet duct to the air cleaner housing.

7. Tighten the air cleaner outlet duct screw clamp.

8. Attach the electrical connector to the air box.

9. Reinstall the side cover.

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.

Test yourself

A quick Cadillac CTS quiz: every answer comes with an explanation and a link to the manual page.