2011 Chevrolet Express 1500 Cargo Owner's Manual - Page 288

10-18 Vehicle Care 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 Scheduled Maintenance on page 11‑3 for more information. If driving in dusty/dirty conditions, inspect the filter at each engine oil change. To inspect or replace the engine air cleaner/filter, do the following: 1. Unhook the retainer clips and remove the cover. 2. Lift the filter out of the engine air cleaner/filter housing. Care should be taken to dislodge as little dirt as possible. 3. Clean the engine air cleaner/ filter housing. 4. Inspect or replace the engine air cleaner/filter. Make sure that the filter fits properly into the housing. 5. Reinstall the cover and fasten the retaining clips. Engine Air Cleaner/Filter If the vehicle has a diesel engine, see the Duramax diesel supplement for more information. 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 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. The engine air cleaner/filter is located near the center of the engine compartment. See Engine Compartment Overview on page 10‑6 for more information on location. { WARNING Operating the engine with the air cleaner/filter off can cause you or others to be burned. (Continued)