GMC 1994 Yukon Owner's Manual page 340

GASOLINE ENGINES WITH LIGHT DUTY EMISSIONS
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MAINTENANCE SCHEDULE
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6
10
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Miles (000)
Item
No.
Service
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1
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Engine Oil Change*-Every 3 Months, or
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Oil Filter Change*-Every 3 Months, or
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-
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2
Chassis Lubrication-Every 12 Months, or
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3 Clutch Fork Ball Stud Lubrication (5-speed
manual transmission with deep-low only)
4 Cooling System Service *-Every 24 Months
or
5 Air Cleaner Filter Replacement*
6 Front Wheel Bearing Repack
7 Transmission Service
**
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9
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Fuel Filter Replacement*$
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10
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Spark Plugs Replacement*
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Spark Plug Wire Inspection*
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Engine Timing Check*$
Fuel Tank, Cap and Lines Inspection *$
Engine Accessory Drive (Serpentine) Belt
Inspection*
Tire and Wheel Rotation**
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Drive Axle Service**
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Brake Systems Inspection**
*
An Emission Control Service
**
See "Explanation of Scheduled Maintenance Services" in the Index
$
The California Air Resources Board has determined that the failure to perform this
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maintenance item will not nullify the emission warranty or limit recall liability prior to the
completion of vehicle useful life. General Motors, however, urges that all recommended
maintenance services be performed at the indicated intervals and the maintenance be
recorded.
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To determine the emissions classification of your engine, refer to "Selecting the Proper
Maintenance Chart" in this section.
T0401Tr0901
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