GMC Sierra 2000, Owner'S Manual

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Short Trip/City Scheduled Maintenance
7-12
15,000 Miles (25 000 km) (Continued)
j Lubricate chassis components (or every 3 months, whichever occurs first).
(See footnote #.)
j Check rear/front axle fluid level and add fluid as needed. Check constant
velocity joints and axle seals for leaking.
j For Two
-
Wheel
-
Drive vehicles only: Clean and repack the front wheel
bearings (or at each brake relining, whichever occurs first).
j Vehicles With GVWR Above 10,000 lbs. or Equipped with Diesel Engine
Only: Inspect shields and underhood insulation for damage or looseness.
Adjust or replace as required. This is a Noise Emission Control Service.
Applicable only to vehicles sold in the United States.
j Diesel Engine Only: 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 sure that the air cleaner housing is
properly seated and the cover fits tightly. 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.
j Diesel Engine Only: 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.