1993 Oldsmobile Silhouette Owner's Manual - Page 288

Maintenance Schedule ITEM NO. SERVICE 10 ITEM NO. SERVICE 13 11 12 Exhaust Gas Recirculation(EGR) System Inspection (3.C Code D engine only)*-Conduct the EGR system service as described in the service manual. To purchase a service manual, see the Index under Sewice Publications. Air Cleaner FilterReplacement*-Replace every 30,000miles (50 000 km) or more often under dusty conditions. Ask your dealer for the proper replacement intervals for your driving conditions. Air Cleaner Inspection (3.C Code D engine only)* +-Inspect all hoses and ducts for proper hookup. Make sure the valve works properly. 14 F'uel Tank,Cap and Lines Inspection*Inspect fuel t n , cap and lines for damage or ak leaks. Inspect fuel cap gasket for even filler neck an imprint or any damage. Replace parts as needed. Periodic replacement of the fuel filter is not required. Engine Timing and Distributor Check ( 3 . a Code D engine only)*-Adjust the timing to the underhood label specifications. Inspect the inside and outside of the distributor cap and rotor for cracks, carbon tracking and corrosion. Clean or replace as needed. *An Emission Control Service. The U S . Environmental Protection Agencyhas determined that the failure pelform this maintenance item not nullifL the emission warranty to will or limit recall liability prior to the completion vehicle use@ l$e. General Motors, however, urges that all recommended maintenance services be of pelformed at the indicated intervals and the maintenance be recorded in Section E: Maintenance Record. 286