Chevrolet 1998 Express Van Owner's Manual page 344

Long Tripmighway Maintenance Schedule
--
Gasoline Engines
0
Rotate tires. See "Tire Inspection and Rotation" in the Index
for
proper
0
Inspect engine accessory drive belt.
0
Replace fuel filter.
0
Replace air cleaner filter.
rotation pattern and additional information. (See footnote
+.)
An Emission Control Service.
An Emission Control Service. (See footnote?.)
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. Applicable only
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 vapor lines
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?.)
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