1996 Chevrolet Express Van Owner's Manual - Page 337

I Long Tripmighway Maintenance Schedule -- Gasoline Engines 0Replace air cleaner filter. An Emission Control Service. 0Conduct Exhaust Gas Recirculation (EGR) system inspection as described in the service manual. An Emission Control Service. 30Conduct evaporative control system inspection. Check all fuel and vapor lines and hoses for proper hook-up, routing and condition. Check that the purgevalve works properly, if equipped. Replace as needed. An Emission Control Service. 0Inspect fuel tank, cap and'lines for damage or leaks. Inspect fuel cap gasket for any damage. Replace parts as needed. An Emission Control Service. -t 0Vehicles With GVWR Above 8,500 lbs. Only: Inspect shields and underhood insulation for damage or looseness. Adjust or replace as required. This is a Noise Emission Control Service. Applicable only to vehicles sold in the United States. -f 0If your engine has a thermostatically controlled cooling fan, inspect all hoses and ducts for proper hook-up (or every 12 months, whichever occurs first). Be sure the valve works properly. This is a Noise Emission Control Service. Applicable only tu vehicles sold in the United States. I I I 1 DATE ACTUAL MILEAGE SERVICED BY: 7-37