GMC SIERRA CK2 1999 Owner's Manual page 383

Short Trip/City Scheduled Maintenance -- Gasoline Engines
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Conduct evaporative control system inspection. Check all fuel and vapor lines
and hoses for proper hook
valve works properly (if equipped). Replace as needed.
An Emission Control Service. (See footnote
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Inspect fuel tank, cap and lines for damage or leaks. Inspect fuel cap
gasket for any damage. Replace parts as needed.
An Emission Control Service. (See footnote
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Rotate tires. See "Tire Inspection and Rotation" in the Index for proper
rotation pattern and additional information. (See footnote +.)
63,000 Miles (105 000 km)
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Change engine oil and filter (or every 3 months, whichever occurs first).
An Emission Control Service.
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Lubricate chassis components (or every 3 months, whichever occurs first).
(See footnote #.)
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Check rear/front axle fluid level and add fluid as needed. Check constant
velocity joints and axle seals for leaking. (See footnote **.)
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up, routing and condition. Check that the purge
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DATE
ACTUAL
SERVICED BY:
MILEAGE
7-21