GMC 1995 Suburban Owner's Manual page 438

Maintenance Schedule I
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Diesel Engines
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Check the air intake system installation to assure that gaskets are
properly sealed and that all hose connections, Fasteners and other
components are tight. Also check to be s ~ ~ r e that the air cleaner housing
is properly seated, the cover fits tightly and the wing nuts are tight.
Tighten connections and fasteners or replace damaged parts as
necessary. This is a Noise Emission Control Service. Applicable only
to vehicles sold in the United States.
If your engine has a thermostatically controlled cooling fan, inspect all
hoses and ducts for proper hook-up (or every 12 months, whichever
occurs first). Be sure the valve works properly. This is a Noise
Emission Control Service. Applicable only to vehicles sold in the
United States.
Check readfront axle fluid level and add fluid as needed. Check
constant velocity joints and axle seals for leaking.
*'I'
DATE SERVICED BY: ACTUAL MILEAGE
32,500 Mi/es
(52
000 km)
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Change engine oil and filter (or every 3 months, whichever occurs
first). AI? Elnission Corltrol Ser-~~icx~.
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Lubricate the front suspension, king pin bushings, steering linkage,
transmission shift linkage, transfer case shift linkage, parking brake
cable guides, rear driveline center splines, front axle propshaft 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 warn1 LIP before lubrication or they could be damaged.
Perform each of the listed lubrication service items at this mileage
interval (or every 12 months, whichever occurs first).
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