1996 Chevrolet Suburban Owner's Manual - Page 441

Maintenance Schedule I - Diesel Engines 60,000 Miles (100 000 km) 0 Change engine oiland filter (or every3 months, whichever occurs first). An Emission Control Service. Lubricate the front suspension, king pin bushings, steering linkage, transmission shift linkage, transfer case shift linkage, parking brake cable guides,rear driveline centersplines, front axlepropshaft splines, brake pedal springs and clutch pedal springs. Ball joints and king pin bushings should not be lubricated unless their temperature is 10" F (-12" C), or higher. When weather is cold, let the ball joints and king pin bushings warm up before lubrication or they could be damaged. Perform each of the listed lubrication service itemsat this mileage interval (or every 12 months, whichever occurs first). Drain, flush and refill the cooling system with new coolant (or every 24 months, whichever occurs first). See "Engine Coolant'' in the Index for what to use. An Emission Control Service. Also inspect the hoses and replace them if they are cracked,swollen or deteriorated. Tighten all hose clamps (except constant tension clamps). Remove debris and clean the outside of the radiator and air conditioning condenser. Wash the radiator neck. To ensure proper operation, pressure test the radiator and cap. 0 Replace air cleaner filter. Replace filter more often under dusty conditions. An Emission Control Service. * 0 For 2-Wheel Drive vehicles only: Clean and repack the front wheel bearings (or at each brake relining, whichever occurs first). 0 Check the crankcasedepression regulator valve system for any worn, plugged or collapsed hoses, See servicemanual. An Emission Control Service. 0 Replace fuel filter. Replace filter sooner if it is clogged.? 0 Check the EGR System (if equipped) (except Code F engine) as described in the service manual. An Emission Control Service. (Continued) 7-78