Doing Your Own Service Work; Two Safety Cautions About Engine Fan Breakage - GMC 2005 T-Series Owner's Manual

Doing Your Own Service Work

If you want to do some of your own service work, you'll
want to use the proper service manual. It tells you much
more about how to service your vehicle than this manual
can. To order the proper service manual, see Service
Publications Ordering Information on page 7-7.
You should keep a record with all parts receipts and list
the mileage and the date of any service work you
perform. See Part D: Maintenance Record on page 6-30.
CAUTION:
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You can be injured and your vehicle could be
damaged if you try to do service work on a
vehicle without knowing enough about it.
•
Be sure you have sufficient knowledge,
experience, the proper replacement parts
and tools before you attempt any vehicle
maintenance task.
•
Be sure to use the proper nuts, bolts and
other fasteners. English and metric
fasteners can be easily confused. If you
use the wrong fasteners, parts can later
break or fall off. You could be hurt.
5-4
Two Safety Cautions about Engine
Fan Breakage
CAUTION:
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Changing the Fan Drive Ratio or Engine
Governed Speed:
If you change the fan drive ratio or increase
the governed speed of the engine, you may
increase stress and the fan could eventually fail.
If the fan breaks apart while it is rotating, pieces
can cause severe injury to anyone — such as a
service technician — who is nearby. And, of
course, the pieces can severely damage the
vehicle. Do not change the fan drive ratio or
increase the governed speed of the vehicle
without getting the necessary information from
your dealer.
CAUTION: (Continued)