wheel CHEVROLET ASTRO CARGO VAN 2003 2.G Workshop Manual

4. Attach the ratchet to the extension, with the DOWN
side facing you. The extension has a socket end
and a ¯at chisel end.
5. Put the ¯at end of the extension on an angle
through the hole in the rear door frame, above
the bumper. Be sure the ¯at end connects into the
hoist shaft.
6. Turn the ratchet counterclockwise to lower the
compact spare tire to the ground. Keep turning
the ratchet until the spare tire can be pulled out from
under the vehicle.7. When the tire has been
lowered, tilt the retainer
plate at the end of
the cable and pull it
through the wheel
opening.
8. Pull the tire out from under the vehicle.
Notice:To help avoid vehicle damage, do not drive
the vehicle before the cable is restored.
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The tools you'll be using include the jack (A), wheel
blocks (B), extension (C) and ratchet (D).
Removing the Wheel Covers
You will have to take off the hub caps to reach the
wheel nuts.
To remove the hub cap from the aluminum wheel, ®t the
¯at end of the extension into the notch. Then, remove
the center cap.
5-75

Removing the Flat Tire and Installing
the Spare Tire
1. Before you start, block the front and rear of the tire
farthest away from the one being changed. Then
put your compact spare tire near the ¯at tire.
{CAUTION:
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.
{CAUTION:
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 ®t the
jack lift head into the proper location before
raising the vehicle.2. With the DOWN side facing you, turn the ratchet
and socket to loosen all the wheel nuts
counterclockwise. Don't remove them yet.
3. The jack has a bolt on the end. Attach the socket
end of the extension to the jack bolt.
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A. Rear Jack Location
B. Jack
C. Ratchet and Extension7. Raise the vehicle by turning the ratchet clockwise.
Make sure the UP mark faces you. Raise the
vehicle far enough off the ground so there is enough
room for the compact spare tire to ®t underneath
the wheel well.
8. Remove all the wheel nuts and take off the ¯at tire. Rear Position
5-78

9. Remove any rust or dirt from the wheel bolts,
mounting surfaces and spare wheel.
{CAUTION:
Rust or dirt on the wheel, or on the parts to
which it is fastened, can make the 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
the 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.
{CAUTION:
Never use oil or grease on studs or nuts. If you
do, the nuts might come loose. Your wheel
could fall off, causing a serious accident.10. Put on the compact spare tire. Put the nuts on by
hand. Make sure the cone-shaped end is toward
the wheel. Tighten each nut by hand until the wheel
is held against the hub. If a nut can't be turned
by hand, use the extension and see your dealer as
soon as possible.
11. Lower the vehicle by turning the ratchet
counterclockwise. Lower the jack completely.
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12. Tighten the wheel nuts
®rmly in a crisscross
sequence as shown.
Turn the ratchet
clockwise with the UP
mark facing you.
{CAUTION:
Incorrect wheel nuts or improperly tightened
wheel nuts can cause the wheel to come loose
and even come off. This could lead to an
accident. Be sure to use the correct wheel
nuts. If you have to replace them, be sure to
get new GM original equipment wheel nuts.
Stop somewhere as soon as you can and have
the nuts tightened with a torque wrench to the
proper torque speci®cation. See ªCapacities
and Speci®cationsº in the Index for wheel nut
torque speci®cation.
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 speci®cation. See ªCapacities and
Speci®cationsº in the index for the wheel nut torque
speci®cation.
13. Remove the wheel blocks.
Notice:Wheel covers won't ®t on your compact
spare. If you try to put a wheel cover on your
compact spare, you could damage the cover or
the spare.
5-80

Storing a Flat or Spare Tire and Tools
{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.
1. Put the ¯at tire on the ground at the rear of the
vehicle with the valve stem pointed down.
2. Tilt the retainer plate downward and through the
wheel opening. Make sure it is fully seated across
the underside of the wheel. Attach the ratchet,
with the UP side facing you, to the extension.3. Put the ¯at end of the extension on an angle
through the hole in the rear door frame, above
the bumper.
The compact spare is for temporary use only.
Replace the compact spare tire with a full-size tire
as soon as you can. SeeCompact Spare Tire
on page 5-82. See the storage instructions label to
restore your compact spare properly.
4. Raise the tire fully against the underside of the
vehicle by turning the ratchet/wheel wrench until
you hear two clicks or feel it skip twice. The spare
tire hoist cannot be overtightened.
5. Make sure the tire is stored securely. Push, pull,
and then try to rotate or turn the tire. If the tire
moves, use the ratchet/wheel wrench to tighten
the cable.
Return the jacking equipment to its proper location.
5-81

Compact Spare Tire
Although the compact spare tire was fully in¯ated when
your vehicle was new, it can lose air after a time.
Check the in¯ation pressure regularly. It should be
60 psi (420 kPa).
After installing the compact spare on your vehicle, you
should stop as soon as possible and make sure
your spare tire is correctly in¯ated. The compact spare
is made to perform well at speeds up to 65 mph
(105 km/h) for distances up to 3,000 miles (5 000 km),
so you can ®nish 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:When the compact spare is installed, don't
take your vehicle 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 other vehicles.
And don't mix your compact spare tire or wheel with
other wheels or tires. They won't ®t. Keep your spare tire
and its wheel together.
Notice:Tire chains won't ®t your compact spare.
Using them can damage your vehicle and can
damage the chains too. Don't use tire chains on
your compact spare.
5-82

Cleaning Aluminum Wheels
Keep your wheels clean using a soft clean cloth with
mild soap and water. Rinse with clean water. After
rinsing thoroughly, dry with a soft clean towel. A wax
may then be applied.
The surface of these wheels is similar to the painted
surface of your vehicle. Don't use strong soaps,
chemicals, abrasive polishes, abrasive cleaners,
cleaners with acid, or abrasive cleaning brushes on
them because you could damage the surface. Do not
use chrome polish on aluminum wheels.
Don't take your vehicle through an automatic car wash
that has silicone carbide tire cleaning brushes. These
brushes can also damage the surface of these wheels.
Cleaning Tires
To clean your tires, use a stiff brush with tire cleaner.
Notice:When applying a tire dressing, always take
care to wipe off any overspray or splash from all
painted surfaces on the body or wheels of the
vehicle. Petroleum-based products may damage the
paint ®nish and tires.
Sheet Metal Damage
If your vehicle is damaged and requires sheet metal
repair or replacement, make sure the body repair shop
applies anti-corrosion material to parts repaired or
replaced to restore corrosion protection.
Original manufacturer replacement parts will provide the
corrosion protection while maintaining the warranty.
Finish Damage
Any stone chips, fractures or deep scratches in the
®nish should be repaired right away. Bare metal
will corrode quickly and may develop into major repair
expense.
Minor chips and scratches can be repaired with touch-up
materials avaliable from your dealer. Larger areas of
®nish damage can be corrected in your dealer's
body and paint shop.
5-88

Vehicle Care/Appearance Materials
(cont'd)
Description Usage
Chrome and Wire Wheel
CleanerRemoves dirt and grime
from chrome wheels and
wire wheel covers.
Finish EnhancerRemoves dust,
®ngerprints, and surface
contaminants, Spray on
wipe off.
Swirl Remover PolishRemoves swirl marks,
®ne scratches and other
light surface
contamination.
Cleaner WaxRemoves light scratches
and protects ®nish.
Foaming Tire Shine Low
GlossCleans, shines and
protects in one easy step,
no wiping necessary.
Vehicle Care/Appearance Materials
(cont'd)
Description Usage
Wash Wax ConcentrateMedium foaming
shampoo. Cleans and
lightly waxes.
Biodegradable and
phosphate free.
Spot LifterQuickly and easily
removes spots and stains
from carpets, vinyl and
cloth upholstery.
Odor EliminatorOdorless spray odor
eliminator used on
fabrics, vinyl, leather
and carpet.
See your General Motors parts department for these
products. See
Part D: Recommended Fluids and
Lubricants on page 6-32.
5-90