GMC Terrain: Vehicle Checks / How to Reinstall the Engine Air Cleaner/Filter

1. Align the air cleaner/filter with the indicated point on the base of the air cleaner/filter housing and install the air cleaner/filter. The outer air cleaner/filter seal must be fitted properly in the air cleaner/filter housing.
2. Align the air cleaner/filter housing cover tabs to the air cleaner/filter housing.
3. Install the air cleaner/filter housing cover using the four screws.
4. Slide the air duct onto the cover assembly and tighten the screw on the air duct clamp.
5. Verify that the wiring harness connector is fully connected to the sensor on the air cleaner/ filter housing.

Warning

Operating the engine with the air cleaner/filter off can cause you or others to be burned. Use caution when working on the engine. Do not start the engine or drive the vehicle with the air cleaner/filter off, as flames may be present if the engine backfires.

Caution

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 driving.