1999 Cadillac Catera Owner's Manual - Page 254

yellowblue See "Scheduled Maintenance Services" in the Maintenance Schedule booklet. CAUTION: 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 stops flame if the engine backfires. If it isn't there, and the engine backfires, you could be burned. Don't drive with it off, and be careful working on the engine with the air cleaner/filter off. 4. Lift the lid, take out the air filter and remove any loose debris that may be found lying in the air cleaner base. 5. Install a new air filter element. See "Normal Maintenance Replacement Parts" in the Index. To reinstall the air cleaner assembly, place the air filter in the air cleaner lid, then insert the lid and filter together into the housing. Reattach the five clips, replace the air intake tube and tighten the clamp. Return the coolant surge tank hose to its proper position. Refer to the Maintenance Schedule to determine when to replace the air filter. NOTICE: If the air cleaner/filter is off, a backfire can cause a damaging engine fire. And, dirt can easily get into your engine, which will damage it. Always have the air cleaner/filter in place when you're driving. 6-16