flat tire GMC SIERRA 1998 User Guide

The tools you’ll be using include the jack (A), the jack
handle extension
(B), the jack handle (C), the wheel
wrench
(D) and the ratchet (E).
If the flat tire is on the rear of the vehicle, you’ll need
the
jack handle extension also.
Attach thejack handle (and jack handle extension, if
needed) to the jack.
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Removing the Flat Tire and Installing the
Spare Tire
1. Use the ratchet and
wheel wrench to loosen
all the wheel nuts. Turn
the wheel wrench to the
left, with
DOWN facing
you,
to loosen the wheel
nuts. Don't remove the
wheel nuts yet.
Front Rear
Position Position
2. Position the jack under the vehicle. If the flat tire is
on the front of the vehicle, position the jack on the
frame behind the flat tire.
If the flat tire is on the
rear, position the jack on the rear axle between the
spring and
the shock absorber.
Getting under a vehicle when it is jacked up
is
dangerous. If the vehicle slips off the jack, you
could be badly injured or killed. Never get under
a vehicle when it is supported only by a jack.
/i CAUTIOL.
-
Raising your vehicle with the jack improperly
positioned can damage the vehicle and even make
the vehicle fall.
To help avoid personal injury and
vehicle damage, be sure to fit the .jack lift head into
the proper location before raising the vehicle.
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Front Position Rear Position
3. With UP on the ratchet fixing you, raise the vehicle
by rotating the ratchet and wheel wrench to the right.
Raise the vehicle far enough off the ground
so there
is enough room for the spare tire to fit.
4. Remove all the wheel
nuts and take
off the
flat tire.
- --__.
I I
5. Remove any rust or dirt
from the wheel bolts,
mounting surfxes and
spare
w hee I.
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NOTICE:
Improperly tightened wheel nuts can lead to
brake pulsation and rotor damage.
To avoid
expensive brake repairs, evenly tighten the wheel
nuts in the proper sequence and to the proper
torque specification.
9. Put the wheel trim back on. For vehicles with plastic
wheel
nut caps, tighten the caps until they are
finger-tight, then tighten them an additional one-half
of a turn with the ratchet and wheel wrench.
Storing a Flat or Spare Tire and Tools
A CAUTION:
Storing a jack, a tire or other equipment in the
passenger compartment
of the vehicle could
cause injury. In
a sudden stop or collision, loose
equipment could strike someone. Store
all these
in the proper place.
Store the flat tire where the spare tire was stored.
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For an underbody spare tire carrier, store the tire under
the rear
of the vehicle in the spare tire carrier. To store
the tire:
1.
2.
3.
4.
5.
Put the tire on the ground at the rear of the vehicle
with the valve stem pointed down and to the rear.
Tilt the retainer downward and through the wheel
opening. Make sure that the retainer
is fully seated
across the underside
of the wheel.
Attach the ratchet, with the
UP mark facing you,
near the hook at the end
of the jack handle. Insert the
other end, on an angle, through
the hole in the rear
bumper and into the hoist shaft.
Raise the tire fully against
the underside of the
vehicle. Continue turning
the ratchet until there. are
two “clicks” or “ratchets.” The spare tire hoist
cannot be over-tightened.
Grasp and push against the tire to be sure
it is stored
securely and does not move.
I Lower Raise
A. Hoist Assembly
B. Ratchet
C. Jack Handle
D. Hoist Shaft
E. Valve Stern,
Pointed Down
E Flat or Spare Tire
G. Retainer
H. Hoist Cable
Return the jack, ratchet, wheel wrench
and jack extensions
to their location behind the passenger’s seat. Secure the
items and replace the jack cover,
if there is one.
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Tires
Your new vehicle comes with high-quality tires made by
a leading tire manufacturer.
If you ever have questions
about your tire warranty and where to obtain service, see
your
GM Warranty booklet for details.
A CAUTION:
Poorly maintained and improperly used tires
are dangerous.
0
0
0
0
Overloading your tires can cause
overheating as
a result of too much friction.
You could have an air-out and
a serious
accident. See “Loading Your Vehicle” in
the Index. Underinflated tires pose the same danger as
overloaded tires. The resulting accident could cause serious injury. Check all tires
frequently to maintain the recommended
pressure. Tire pressure should be checked when your tires are cold.
Overinflated tires are more likely to be cut,
punctured
or broken by a sudden impact --
such as when you hit a pothole. Keep tires
at the recommended pressure.
Worn, old tires can cause accidents. If your
tread is badly worn, or if your tires have
been damaged, replace them.
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Inflation -- Tire Pressure
The CertificationlTire label, which is on the rear edge of
the driver’s door, or on the incomplete vehicle document
in the cab, shows the correct inflation pressures for your
tires when they’re cold.
“Cold” means your vehicle has
been sitting for at least three hours or driven no more
than
1 mile (1.6 krn).
NOTICE:
Don’t let anyone tell you that underinflation or
overinflation is all right.
It’s not. If your tires
don’t have enough
air (underinflation), you can
get the following:
0 Too much flexing
Too much heat
0 Tire overloading
0 Bad wear
Bad handling
0 Bad fuel economy.
If your tires have too much air (overinflation),
you can get the following:
0 Unusual wear
0 Bad handling
0 Rough ride
0 Needless damage from road hazards.
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When to Check
Check your tires once a month or more. Also, check the
tire pressure of the spare tire.
How to Check
Use a good quality pocket-type gage to check tire
pressure. You can’t tell if your tires are properly inflated
simply by looking at them. Radial tires may
look
properly inflated even when they’re underinflated.
Be sure
to put the valve caps back on the valve stems.
They help prevent leaks by keeping out dirt and moisture.
Tire Inspection and Rotation
Tires should be rotated every 6,000 to 8,000 miles
(10 000 to 13 000 km). Any time you notice unusual
wear, rotate your tires as soon as possible and check
wheel alignment.
Also check for damaged tires or
wheels.
See “When It‘s Time for New Tires” and
“Wheel Replacement” later in this section for more
information. If your vehicle has dual rear wheels, also
see “Dual Tire Operation” later
in this section. The purpose
of regular rotation
is to achieve more
uniform wear
for all tires on the vehicle. The first
rotation is the most important. See “Scheduled
Maintenance Services”
in the Index for scheduled
rotation intervals.
1
FRT FRT
[x[
If your vehicle has single rear wheels, always use one of
the correct rotation patterns shown here when rotating
your tires.
If your vehicle has front tires with different load ranges
or tread designs (such as all season vs. on/off road) than
the rear tires, don’t rotate your tires front
to rear.
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~ 11 your
vehicle has dual rear wheels and the load range
’ and tread design for your front tires is the same as your
rear tires, always use one of the correct rotation patterns
shown here when rotating your tires.
r.
If your vehicle has dual rear wheels and the load range
or tread design for your front tires is different from your
rear tires, always use the correct rotation pattern shown
here when rotating your tires. The dual tires are rotated
as a pair, and the inside rear tires become the outside
rear tires.
When you install dual wheels, be sure the vent holes in
the inner and outer wheels on each side are lined up.
After the tires have been rotated, adjust the front and
rear inflation pressures as shown
on the
Certificatioflire label. Make certain that all wheel nuts
are properly tightened. See “Wheel Nut Torque’’ in
the Index.
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A CAUTION:
Rust or dirt on a wheel, or on the parts to which
it is fastened, can make wheel nuts become loose
after a time. The wheel could come
off and cause
an accident. When you change
a wheel, remove
any rust
or dirt from places where the wheel
attaches to the vehicle. In an emergency, you can
use a cloth or a paper towel to do this; but be
sure to use a scraper or
wire brush later, if you
need to, to get all the rust
or dirt off. (See
“Changing
a Flat Tire” in the Index.)
1 When It’s Time for New Tires
One way to tell when it’s
time for new tires is to
check the treadwear
indicators, which will
appear when your tires have
only
1/16 inch (1.6 mm) or
less of tread remaining.
Some commercial truck
tires may not have
treadwear indicators.
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