1998 Chevrolet Express Van Owner's Manual - Page 256
1998 Chevrolet Express Van Manual
Page 256 highlights
5. Install a new filter element with the folds in the down position. Reverse Steps 1 through 4 to replace the air cleaner. See "Normal Replacement Parts" for the proper filter to use. Refer to the Maintenance Schedule to determine when to replace the air filter and crankcase ventilation filter. See "Scheduled Maintenance Services" in the Index. I NOTICE: If the air cleaner is off, a backfire can cause a damaging engine fire. And, dirt caneasily get into yourengine, which will damage it. Always have the air cleaner in place you're driving. when I Automatic Transmission Fluid If your vehicle has a diesel engine, see "Automatic Transmission Fluid" in the DieselSupplement. I /!1 CAUTION: Operating the engine with the cleaner off can air be cause you or others to burned. The air cleaner not only cleans the air, it stops flame engine if the 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 off. When to Check and Change A good time to check your automatic transmission fluid level is when the engine oil is changed. Change both the fluid and filter every 50,000 miles (83 000 km) if the vehicle'sGVWR is over 8,600 or if the vehicle is mainly driven under one or more of these conditions: In heavy city traffic where the outside temperature regularly reaches 90"F (32"C ) or higher. In hilly or mountainous terrain. 0 When doing frequent trailer towing. 6-17