Engine Air Cleaner/Filter
When to Inspect the Engine Air Cleaner/Filter
Inspect the air cleaner/filter at the scheduled maintenance intervals and replace it at the first oil change after each 80 000 km (50,000 mi) interval. See Maintenance Schedule on page 11‑3 for more information.
If driving in dusty/dirty conditions, inspect the filter at each engine oil change.
See Engine Compartment Overview on page 10‑6 for the location of the engine air cleaner/filter.
How to Inspect the Engine Air Cleaner/Filter
To inspect the air cleaner/filter, remove the filter from the vehicle and lightly shake the filter (away from vehicle) to release loose dust and dirt. If the filter remains covered with dirt, a new filter is required.
To inspect or replace the engine air cleaner/filter, do the following:
1. Remove the engine cover.
See Engine Cover on page 10‑8.
A. Ventilation Tube
B. Sensor
2. Disconnect the cover fitting from the ventilation tube (A).
3. Disconnect the wiring harness connector from the sensor (B).
A. Clamp
B. Screws
C. Housing Cover
D. Filter
E. Base
4. Loosen the outlet duct clamp (A).
5. Loosen the six housing cover (C) screws (B).
6. Remove the housing cover (C) with outlet duct.
7. Remove the filter (D) and any loose debris that may be found in the base (E).
8. Inspect or replace the filter (D).
9. Reverse Steps 2 through 6 to reinstall the housing cover and reconnect the electrical connector to the sensor.
10. Reinstall the engine cover.
See Engine Cover on page 10‑8.
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.
See also:
Engine Air Cleaner/Filter
If the vehicle has a diesel engine, see “Pickup Models” under “Engine Air Cleaner/Filter” in the Duramax® Diesel Supplement for the correct inspection and replacement procedures.
See Engine ...
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The light goes out when the fog lamps are turned off. See Fog Lamps on page 6‑6 for more information. ...
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