GMC SIERRA DENALI 2002 Manual page 366

Scheduled Maintenance
60,000 Miles (100 000 km)
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Replace passenger compartment air filter. If you drive regularly under dusty
conditions, the filter may require replacement more often.
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Check rear/front axle fluid level and add fluid as needed. Check constant
velocity joints and axle seals for leaking.
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Rotate tires. See "Tire Inspection and Rotation" in the Index for proper
rotation pattern and additional information. (See footnote +.)
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Inspect engine accessory drive belt.
An Emission Control Service.
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Replace fuel filter.
An Emission Control Service. (See footnote
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Inspect Evaporative Control System. Check all fuel and vapor lines and hoses
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for proper hook up, routing and condition. Check that the purge valve works
properly, if equipped. Replace as needed.
An Emission Control Service. (See footnote
67,500 Miles (112 500 km)
j
Check rear/front axle fluid level and add fluid as needed. Check constant
velocity joints and axle seals for leaking.
j
Rotate tires. See "Tire Inspection and Rotation" in the Index for proper
rotation pattern and additional information. (See footnote +.)
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