2013 Chevrolet Express 1500 Cargo Owner Manual - Page 264

10-16 Vehicle Care 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. When to Inspect the Engine Air Cleaner/Filter Inspect or replace the air cleaner/ filter at the scheduled maintenance intervals. See Maintenance Schedule on page 11‑3. If driving in dusty/dirty conditions, inspect the filter at each engine oil change. Cooling System The cooling system allows the engine to maintain the correct working temperature. How to Inspect the Engine Air Cleaner/Filter To inspect the air cleaner/filter, remove the filter from the vehicle and lightly shake it 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. To inspect or replace the engine air cleaner/filter: 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. { 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. 4.3L V6 Engine Shown (4.8L V8 Engine, 5.3L V8 Engine, and 6.0L V8 Engine Similar) 1. Radiator Pressure Cap 2. Coolant Recovery Tank 3. Engine Cooling Fan (Out of View)