1994 GMC SIERRA Owners Manual

That will lift the jack head a little. Before raising the vehicle, do the
following things.
Put your spare tire near the flat tire.
Remove the wheel trim.
Be careful; the rim edges may be sharp. Don't
try to remove it with your
bare hands.
- If your vehicle has
wheel nut caps, use
the wheel wrench and
ratchet, with
DOWN
facing you, to unscrew
and take them off.
Then take the hub cap off.
If the wheel has a trim ring, remove it by using the flat end of the wheel
wrench.
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If the wheel has a
smooth center piece
or
a center piece with
recessed nuts, place
the
flat end of the
wheel wrench
in the
slot on the wheel and
pry out gently.
Using the wheel
wrench and ratchet,
with
DOWN facing
Position the
jack under the vehicle.
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NOTICE:
Raising your vehicle with the jack improperly positioned will
damage the vehicle or may allow the vehicle to fall
off the jack.
Be sure to fit the jack lift head into the proper location before
raising your vehicle.
Front Position
I
Raise the vehicle by rotating the ratchet to the right. Make sure the UP
marking faces you. Use the jack handle extentions if the flat is on the rear of
the vehicle. Raise the vehicle far enough off the ground so there is enough
room for the spare tire to fit.
Remove all the wheel
nuts and take off the
flat tire.
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Remove any rust or
dirt from the wheel
bolts, mounting surfaces and spare
wheel. Place the spare
on the wheel
mounting surface.
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Replace the wheel
nuts with the rounded
end of the nuts toward
the wheel.
Lower the vehicle by rotating the ratchet to the left. Lower the jack
completely.
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Tighten to the Left Tightening Sequence
Tighten the nuts firmly in a criss-cross sequence as shown. Rotate the
ratchet to the right with the
UP marking facing you.
For proper torque, see “Wheel Nut Torque” in the Index.
Put the wheel trim back on. For vehicles with plastic nut caps, tighten the
c3ps until they
are finger tight, then tighten them an additional one-half turn
with the ratchet. Remove any wheel blocks.
Remember, the jack and tire must be properly stored
in their original storage
position before you begin driving again. The next part, “Storing the Jack
and Tire,” will show
you how.
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Storing the Tire and Jack
Storing Tire and Jack -Underbody Carrier Mounted Spare Tire
8
7
1. Hoist Assembly
2. Ratchet
3. Wheel Wrench
4. Hoist Shaft
5. Valve Stem (Pointed Down)
6. Spare Tire
7. Retainer
8. Hoist Cable
Put the tire on the ground at the rear of the vehicle, with the valve stem
pointed down.
Pull the retainer through the wheel center. Attach the ratchet,\
with the
UP
side facing you, to the socket. Put the flat end of the socket into the hole in
the rear bumper.
Turn the ratchet until the tire is raised against the underside
of the vehicle.
YOU will hear two “clicks” when the tire is secure, but pull on the tire to
make sure.
Return the jack, ratchet, socket and jack extensions to their location behind
the passengers’ seat. Store the jack; and jacking tools
as shown in the
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illustrations earlier in this section. Secure the items and replace the jack
cover
if there is one.
Storing Tire and Jack -Pickup Bed Mounted Spare Tire
1. Spare Tire
2. Spare Wheel
3. Spare Wheel
Mounting Nut
Mounting Bolt
Put the tire in the bed of the vehicle and slide the spare wheel mounting bolt
through the bottom wheel nut hole. Be sure the valve stem fac\
es
out.
Then place the spare wheel mounting nut on the bolt and turn \
it to the right
until the tire is secure.
Return the jack, ratchet, socket and jack extensions
to their location behind
the passengers’ seat. Store the jack and jacking tools as shown in the
illustrations earlier in this section. Secure the items and rep\
lace the jack
cover
if there is one.
If You’re Stuck: In Sand, Mud, Ice or Snow
What you don’t want to do when your vehicle is stuck is to spin your
wheels. The method known as “rocking” can help you get o\
ut when you’re
stuck, but
you must use caution.
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