1995 GMC Sonoma Owner's Manual - Page 321

I Maintenance Schedule II 82,500 Miles (137 500 km) 0 Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service. 0 Lubricate the front suspension, ball joints, steering linkage and transfer case shift linkage, parking brake cable guides, propshaft splines, universal joints, brake pedal springs, and clutch pedal springs (or every 12 months, whichever occurs first). 0 Check readfront axle fluidlevel and add fluid as needed. Check constant velocity joints and axle seals for leaking.'k* 0 Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. 90,000 Miles (150 000 km) 0 Change engine oil and filter (or every 12 months, whichever occurs first). An Ernission Control Service. 0 Lubricate the front suspension, ball joints, steering linkage and transfer case shift linkage, parking brake cable guides, propshaft splines, universal joints, brake pedal springs, and clutch pedal springs (or every 12 months, whichever occurs first). '3 Check readfront axle fluidlevel and add fluid as needed. Check constant velocity joints and axle seals forleaking.*:': 0 For 2-Wheel Drive vehicles only: Clean and repack the front wheel bearings (or at each brake relining, whichever occurs first). 0 Drain, flush and refill cooling system (or every 24 months, whichever occurs first), See "Engine Coolant" the Index for what to use. in Inspect hoses. Clean radiator, condenser, pressure capand neck, Pressure test the cooling system and pressure cap. An Enzission Control Service. (Continued) 7-33