1998 Chevrolet Blazer Owner's Manual - Page 362

I Short Trip/City Maintenance Schedule I 99,000 Miles (165 000 km)(Continued) 0 Lubricate chassis co )on ts (or every 3 months, whichever occurs first). (See footnote #.) 0 Check readfront axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) 100,000 Miles (166 000 km) 0 Inspect spark plug wires. An Emission Control Service, 0 Replace spark plugs. An Emission Control Service. 0 If you haven't used your vehicle under severe service conditions listed previously and, therefore, haven't changed your automatic transmission fluid, change both thefluid and filter. Manual transmission fluid doesn't require change. 0 Inspect Positive Crankcase Ventilation (PCV) valve. An Emission Control Service. DATE I ACTUAL MILEAGE I SERVICEDBY: I 150,000 Miles (240 000 km) 0 Drain, flush and refill cooling system (or every60 months since last service, whichever occursfirst). See "Engine Coolant" in the Index for what to use. Inspect hoses. Clean radiator, condenser, pressure and neck.Pressure test cap cooling system and pressure cap. An Emission Control Service. DATE MILEAGE I 7-26