GMC C-Series 2001 Owner's Manual page 296

96,000 Miles (160 000 km) (Continued)
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Shields and underhood insulation service. (4)(5)(21)
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Air intake system service (or every 24 months,
whichever occurs first). (4)(5)(24)
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Evaporative Control System Service (if equipped) (or
every 24 months, whichever occurs first). (3)(26)
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Rear axle air shift motor service. (11)
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Check air brake relay valve operation and check for
leaks (or every month, or every 300 hours,
whichever occurs first).
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Air brake chamber service (or every 2 months,
whichever occurs first). (41)
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Trailer brake hand control valve service (or every
3 months, or 900 hours, whichever occurs first). (42)
99,000 Miles (165 000 km)
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Check Oil Life Monitor. If engine oil and filter
are changed, reset monitor. See "Engine Oil"
in the Index. (3)(9)
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Check fluid levels (or every 3 months, whichever
occurs first). (1)(2)(6)
7-18
100,000 Miles (166 000 km)
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Change power steering fluid (or every 24 months,
whichever occurs first). (13)
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Replace power steering reservoir filter element
(or every 24 months, whichever occurs first).
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Front axle service (or every 36 months, whichever
occurs first). (38)
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Rear axle service
(or every 12 months, whichever occurs first). (37)(47)
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Exhaust brake service (if equipped). Check for
excessive spindle free play and smooth operation.
Lubricate ball joint cap.
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Air brake service (or every 12 months, or
3,600 hours, whichever occurs first). (44)
150,000 Miles (240 000 km)
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Cooling system service (or every 60 months since
last service, whichever occurs first). (3)(35)
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Eaton, Rockwell, Spicer Axles