1998 Chevrolet Express Van Owner's Manual - Page 344
1998 Chevrolet Express Van Manual
Page 344 highlights
Long Tripmighway Maintenance Schedule Gasoline Engines -0 Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) 0 Inspect engine accessory drive belt. An Emission Control Service. 0 Replace fuel filter. An Emission Control Service. (See footnote?.) 0 Replace air cleaner filter. An Emission Control Service. 0 Inspect fuel tank, cap and lines for damage or leaks. Inspect fuel cap gasket for any damage. Replace parts as needed. An Emission Control Service. (See footnote?.) 0 Vehicles With GVWR Above 8,500 lbs. Only: Inspect shields and underhood insulation for damage or looseness. Adjust or replace as required. This is CI Noise Emission Control Service. Applicableonly to vehicles sold in the United States. 0 Conduct Exhaust Gas Recirculation (EGR) system inspection as described in the service manual. An Emission Control Service. (See footnote?.) 0 Conduct evaporative control system inspection. Check all fuel and vaporlines and hoses for proper hook-up, routing and condition. Check that the purge valve works properly,if equipped. Replace as needed. An Emission Control Service. (See footnote?.) 7-33