wheel OLDSMOBILE SILHOUETTE 1995 Service Manual

16. Tighten the wheel nuts firmly in a crisscross
sequence as shown. 17.
Lay the flat tire near the rear of the vehicle with the
valve stem down. Slide the cable retainer through
the center
of the wheel and raise the flat tire until
you hear the hoist mechanism click twice. This
means that the wheel is firmly stored against the
underside
of the vehicle. When storing the spare
tire, be certain
to turn the spare so the valve stem is
near the rear
of the vehicle. This will help you to
check and maintain tire pressure in the spare.
Push against the tire to be certain it is stored firmly.
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18. Replace all jacking tools as they were stored in the
storage compartment and replace the compartment
cover. Be sure
to also store the nylon nut caps. When
you replace
the compact spare tire with a full-size
tire, replace the
nylon nut caps over the wheel nuts.
Tighten
them “hand tight” using the folding wrench
(see step
7).
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Compact Spare Tire
Although the compact spare was fully inflated when
your vehicle was new, it can lose air after a time. Check
the inflation pressure regularly. It should be
60 psi
(420 Pa). After installing the compact spare on your
vehicle, you should stop as soon as possible and make
sure your spare tire is correctly inflated. The compact
spare
is made to perform well at posted speed limits for
distances up
to 3,000 miles (5 000 km), so you can
finish your trip and have your full-size tire repaired or
replaced where you want. Of course, it’s best to replace
your spare with a full-size tire as soon as you can. Your
spare will last longer and be in good shape in case
you
need it again.
NOTICE:
Don’t take your compact spare through an
automatic car wash with guide rails. The
compact spare can get caught
on the rails. That
can damage the tire and wheel, and maybe other
parts
of your vehicle.
Don’t use your compact spare on some other vehicle.
And don’t mix your compact spare or wheel with other
wheels
or tires. They won’t fit. Keep your spare and its
wheel together.
NOTICE:
Tire chains won’t fit your compact spare. Using
them will damage your vehicle and destroy the
chains too. Don’t use tire chains
on your compact
spare.
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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 too fast. The method known as
“rocking” can help you get out when you’re stuck, but
you must use caution.
NOTICE:
Spinning your wheels can destroy parts of your
vehicle as well as the tires.
If you spin the wheels
too fast while shifting your transaxle back and
forth, you can destroy your transaxle.
For information about using tire chains on your vehicle,
see “Tire Chains’’ in the Index.
Rocking Your Vehicle to Get it Out
First, turn your steering wheel left and right. That will
clear the area around your front wheels.
I€ your vehicle
has traction control, you should turn the system off. (See
“Traction Control System” in the Index.) Then shift
back and forth between
REVERSE (R) and a forward
gear, spinning the wheels as little as possible. Release
the accelerator pedal while you shift, and press lightly
on the accelerator pedal when the transaxle is in gear. If
that doesn’t get you out after a few tries, you may need
to be towed out.
If you do need to be towed out, see
“Towing Your Vehicle” in the Index.
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How to Check
Use a good quality pocket-type gage to check tire
pressure. Simply looking at the tires will not tell you the
pressure, especially if you have radial tires
-- which
may look properly inflated even if they’re underinflated.
If your tires have valve caps, be sure to put them back
on. They help prevent leaks by keeping out dirt and
moisture.
Tire Inspection and Rotation
Tires should be inspected every 6,000 to 8,000 miles
(1 0 000 to 13 000 km) for any signs of unusual wear. If
unusual wear is present, 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.
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. When
rotating your tires, always use the correct rotation
pattern shown here.
Don’t include the compact spare tire in your tire
rotation.
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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Treadwear Temperature - A, B, C
The temperature grades are A (the
highest), B, and C,
representing the tire’s resistance to the generation of
heat and its ability to dissipate heat when tested under
controlled conditions on a specified indoor laboratory
test wheel. Sustained high temperature can cause the
material of the tire to degenerate and reduce tire life, and
excessive temperature can lead to sudden tire failure.
The grade
C corresponds to a level of performance
which all passenger car tires must meet under the
Federal Motor Vehicle Safety Standard
No. 109. Grades
B and A represent higher levels of performance on the
laboratory test wheel than the minimum required by law.
The treadwear grade
is a comparative rating based on
the wear rate of the tire when tested under controlled
conditions on a specified government test course. For
example, a tire graded
150 would wear one and a half
(1 1/2) times as well on the government course as a tire
graded
100. The relative performance of tires depends
upon the actual conditions
of their use, however, and
may depart significantly from the norm due to variations
in driving habits, service practices and differences
in
road characteristics and climate.
Traction - A, B, C
The traction grades, from highest to lowest are: A, B,
and C. They represent the tire’s ability to stop on wet
pavement as measured under controlled conditions on
specified government test surfaces
of asphalt and
concrete.
A tire marked C may have poor traction
performance.
Warning: The traction grade assigned
to this tire is based
on braking (straight-ahead) traction tests and does not
include cornering (turning) traction. Warning:
The temperature grade for this tire is
established for a tire that
is properly inflated and not
overloaded. Excessive speed, underinflation, or
excessive loading, either separately or in combination,
can cause heat buildup and possible tire failure.
These grades are molded on the sidewalls
of passenger
car tires.
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While the tires available as standard or optional
equipment
on General Motors vehicles may vary with
respect to these grades, all such tires meet General
Motors performance standards and have been approved
for use on General Motors vehicles. All passenger type
(P Metric) tires must conform to Federal safety
requirements in addition to these grades.
Wheel Alignment and Tire Balance
The wheels on your vehicle were aligned and balanced
carefully at the factory to give you the longest tire life
and best overall performance.
In most cases, you will not need to have your wheels
aligned again. However, if you notice unusual tire wear
or your vehicle pulling one way or the other, the
alignment may need to be reset.
If you notice your
vehicle vibrating when driving on
a smooth road, your
wheels may need to be rebalanced.
Wheel Replacement
Replace any wheel that is bent, cracked, or badly rusted
or corroded.
If wheel nuts keep coming loose, the wheel,
wheel bolts, and wheel nuts should be replaced. If the
wheel leaks air, replace it (except some aluminum wheels,
which can sometimes be repaired). See your
Oldsmobile retailer
if any of these conditions exist.
Your retailer will know the kind of wheel you need.
Each new wheel should have the same load carrying
capacity, diameter, width, offset, and be mounted the
same way as the one it replaces.
If you need to replace any of your wheels, wheel bolts,
or wheel nuts, replace them only with new GM original
equipment parts. This way, you will be sure
to have the
right wheel, wheel bolts, and wheel nuts for your
Oldsmobile model.
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1 NOTICE:
The wrong wheel can also cause problems with
bearing life, brake cooling,
speedometer/odometer calibration, headlamp
aim, bumper height, vehicle ground clearance,
and tire or tire chain clearance to the body and
chassis.
Used Replacement Wheels
Tire Chains
NOTICE:
Use tire chains only where legal and only when
you must. Use only
SAE Class “S” type chains
that are the proper size for your tires. Install
them on the front tires and tighten them
as
tightly as possible with the ends securely
fastened. Drive slowly and follow the chain
manufacturer’s instructions.
If you can hear the
chains contacting your vehicle, stop and retighten
them.
If the contact continues, slow down until it
stops. Driving too fast or spinning the wheels
with chains on will damage your vehicle.
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Exterior painted surfaces are subject to aging, weather
and chemical fallout, that can take their toll over
a
period of years. You can help to keep the paint finish
looking new by keeping your Oldsmobile garaged or
covered whenever possible.
Aluminum Wheels
Tires
To clean your tires, use a stiff brush with a tire cleaner.
When applying
a tire dressing always take care to wipe
off any overspray or splash from painted surfaces.
Petroleum-based products may damage the paint finish.
Your aluminum wheels have
a protective coating similar Finish Damage
to the painted surface of your vehicle. Don’t use strong Any stone chips, fractures or deep scratches in the finish
soaps, chemicals, chrome polish, abrasive cleaners or should be repaired right away.
abrasive cleaning brushes on them because yo~l could
damage this coating. After rinsing thoroughly,
a wax
may be applied. Minor
chips and scratches can be repaired with touch-up
materials available from your retailer or other service
outlets. Larger areas of finish damage can be corrected
in your retailer’s body and paint shop.
NOTICE: Underbody Maintenance
Don’t use an automatic car wash that has hard
silicon carbide cleaning brushes. These brushes
can take the protective coating
off your
underbody parts such as fuel lines, frame, floor pan, and aluminum wheels.
removed, accelerated corrosion (rust) can occur on the
Chemicals used
for ice and snow removal and dust
control can collect on the underbody. If these are not
exhaust system even though they have corrosion
protection.
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Capacities and Specifications (Continued)
FuelTank ..................................................
Power Steering
3.1L V6 Engine
PumpOnly ..............................................
Complete System .........................................
PumpOnly ..............................................
Complete System .........................................
Tire Pressures, Sizes ..........................................
WheelNutTorque ...........................................
3800 V6 Engine
20 gallons
1 pint
I 1/4 pints
76.00 L
0.50 L
0.60 L
1 pint 0.50 L
1 1/2 pints 0.70 L
See CertificatiodTire label on driver’s door.
100 lb-ft 140 Nom
NOTE: All capacities are approximate. When adding, be sure to fill to the appropriate level, as recommended in this manual.
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