1997 CHEVROLET ASTRO change time

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission Fluid
When to Check and Change
A good time to check your automatic transmission fluid
level is when
the engine oil is changed.
Change both the fluid and filter every
15,000 miles
(25 000 km) if the vehicle is mainly driven under one or
more
of these conditions:
0 In heavy city traffic where the outside temperature
In hilly or mountainous terrain.
0 When doing frequent trailer towing.
regularly reaches
90 OF (32 ” C) or
higher.
Uses such as found in taxi, police or delivery service.
If you do not use your vehicle under any of these
conditions, change the fluid and filter every
30,000 miles
(50 000 km).
See “Scheduled Maintenance Services” in the Index.
How to Check
Because this operation can be a little difficult, you may
choose to have this done at your
GM dealership
Service Department.
If you do it yourself, be sure to follow all the instructions
here, or you could get
a false reading on the dipstick.
NOTICE:
Too much or too little fluid can damage your
transmission.
Too much can mean that some of
the fluid could come out and fall on hot engine
parts or exhaust system parts, starting a fire. Be
sure to get an accurate reading if you check your
~ transmission fluid.
Wait at least 30 minutes before checking the
transmission fluid level if you have been driving:
0 When outside temperatures are above 90°F (32°C).
0 At high speed for quite a while.
0 In heavy traffic -- especially in hot weather.
0 While pulling a trailer.
To get the right reading, the fluid should be at normal
operating temperature, which
is 180°F to 200°F
(82°C to 93°C).
6-20

Downloaded from www.Manualslib.com manuals search engine Properly torqued wheel nuts are necessary to help
prevent brake pulsation. When tires are rotated, inspect
brake pads for wear and
evenly torque wheel nuts in the
proper sequence
to GM specifications.
Your rear drum brakes don’t have wear indicators, but
if
you ever hear a rear brake rubbing noise, have the rear
brake linings inspected. Also,
the rear brake drums
should be removed and inspected each time the tires are
removed for rotation or changing. When
you have the
front brakes replaced, have the rear brakes inspected, too.
Brake linings should always be replaced as complete
axle sets.
See “Brake System Inspection’’ in Section
7 of this
manual under Part
C “Periodic Maintenance
Inspections.”
Brake Pedal Travel
See your dealer if the brake pedal does not return to
normal height, or if there is a rapid increase
in pedal
travel. This could be a sign of brake trouble.
Brake Adjustment
Every time you make a brake stop, your disc brakes
adjust for wear.
If your brake pedal goes down farther than normal, your
rear drum brakes may need adjustment. Adjust them by
backing up and firmly applying the brakes a few times.
Replacing Brake System Parts
The braking system on a modern vehicle is complex.
Its many parts have to be
of top quality and work well
together if the vehicle is to have really good braking.
Your vehicle was designed and tested with top-quality
GM brake parts. When
you replace parts of your braking
system
-- for example, when your brake linings wear
down and you have to have new ones put
in -- be sure
you get new approved GM replacement parts. If you
don’t, your brakes may
no longer work properly. For
example,
if someone puts in brake linings that are wrong
for your vehicle,
the balance between your front and
rear brakes can change
-- for the worse. The braking
performance you’ve come to expect can change
in many
other ways
if someone puts in the wrong replacement
brake parts.
6-35

Downloaded from www.Manualslib.com manuals search engine Tire Inspection and Rotation
Tires should be rotated every 6,000 to 8,000 miles
( 10 000 to 1 3 000 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.
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.
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.)
~ 6-45

Downloaded from www.Manualslib.com manuals search engine Normal Maintenance
Replacement Parts
Replacement part numbers listed in this section are
based
on the latest information available at the time of
printing, and are subject to change. If a part listed in this
manual
is not the same as the part used in your vehicle
when it was built, or if you have any questions, please
contact your
GM truck dealer.
Engine Oil Filter
................ AC Type PF52
Air Cleaner
................... AC Type A 1 163C
Positive Crankcase
Ventilation (PCV) Valve
........ AC Type CV774C
Spark Plugs
................... AC Type 4 1-932
Spark Plug Gap
.......... 0.060 inches ( 1.52 mm)
Fuel Filter ..................... AC Type GF48 1
Thermostat
............... GM Part No. 1255 1472
Wiper Blades (Front)
............ Trico 221 10158, Pin Type
18 inches (45.7 cm) Length
Wiper Blade (Rear)
............. Trico 22 154396,
Pin Type
14 inches (35.5 cm) Length
Vehicle Dimensions*
Overall Length ............. 189.8 inches (482 cm)
Width
................... 77.5 inches (196.8 cm)
Height.
.................. 76.2 inches (193.5 cm)
Wheelbase
.............. 1 1 1.2 inches (282.4 cm)
Front Tread Width
......... 65.1 inches (165.4 cm)
Rear Tread Width
.......... 65.1 inches ( 1 65.4 cm)
*Figures reflect base equipment
only.
6-68

Downloaded from www.Manualslib.com manuals search engine Short TripKity Maintenance Schedule
The services shown in this schedule up to 100,000 miles
( 166 000 km) should be performed after 100,000 miles
(166 000 km) at the same intervals. The services shown
at
150,000 miles (240 000 km) should be performed at
the same interval after
150,000 miles (240 000 km).
See “Owner Checks and Services” and “Periodic
Maintenance Inspections’’ following.
Footnotes
‘f The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not
nullify
the emission warranty or limit recall liability prior to the
completion
of the vehicle’s useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the maintenance
be recorded.
# Lubricate the front suspension, ball joints and kingpin
bushings, steering linkage and transfer case shift
linkage, parking brake cable guides, and brake
pedal springs.
+ A good time to check your brakes is during tire
rotation. See “Brake System Inspection’’ under “Periodic
Maintenance Inspection”
in Part C of this schedule.
:%* Drive axle service (see “Recommended Fluids and
Lubricants”
in the Index for proper lubricant to use):
0
0
0
Locking Differential -- Drain fluid and refill at first
engine
oil change. At subsequent oil changes, check
fluid level and add fluid as needed. If driving
in
dusty areas or towing a trailer, drain fluid and refill
every
15,000 miles (25 000 km).
Standard Differential
-- Check fluid level and add
fluid as needed at every oil change. If driving in
dusty areas or towing a trailer, drain fluid and refill
every
15,000 miles (25 000 km).
More frequent lubrication may be required for
heavy-duty use.
7-7

Downloaded from www.Manualslib.com manuals search engine Long TriplHighway Maintenance Schedule I
The services shown in this schedule up to 100,000 miles
( 166 000 km) should be performed after 100,000 miles
(166
000 km) at the same intervals. The services shown
at
150,000 miles (240 000 km) should be performed at
the same interval after 150,000 miles
(240 000 km).
See “Owner Checks and Services” and “Periodic
Maintenance Inspections” following.
Footnotes
The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will
not nullify
the emission warranty or limit recall liability prior to
the
completion of the vehicle’s useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the maintenance
be recorded.
# Lubricate the front suspension, ball joints and kingpin
bushings, steering linkage and transfer case shift
linkage, parking brake cable guides, and brake
pedal springs.
+ A good time to check your brakes is during tire
rotation. See “Brake System Inspection” under “Periodic
Maintenance Inspections” in Part
C of this schedule.
** Drive axle service (see “Recommended Fluids and
Lubricants” in the Index
for proper lubricant to use):
0 Locking Differential -- Drain fluid and refill at first
engine oil change. At subsequent oil changes, check
fluid level and add fluid as needed.
0 Standard Differential -- Check fluid level and add
fluid as needed at every engine oil change.
7-30

Downloaded from www.Manualslib.com manuals search engine Courtesy Transportation
Chevrolet/Geo offers Courtesy Transportation for
customers needing warranty service. Courtesy
Transportation will be offered
in conjunction with the
coverage provided by the Bumper to Bumper New
Vehicle Limited Warranty
to retail purchasers of
1997 Chevrolet/Geo passenger cars and light duty
trucks (please see your selling dealer for details).
Courtesy Transportation includes:
One way shuttle ride for any warranty repair
Up to $30 maximum daily vehicle rental allowance
0 Up to $30 maximum daily cab, bus or other
completed during the
same day.
for any overnight warranty repair up to five days,
OR
transportation allowance in lieu of rental for any
overnight warranty repair up
to five days, OR
Up to $10 daily fuel allowance for rides provided by
another person (i.e., friend, neighbor, etc.) in lieu
of
rental for any overnight warranty repair up to five days.
Note: All Courtesy Transportation arrangements will
be administered by your Chevrolet/Geo dealer
service management, Claim amounts should reflect
all actual costs.
0 Chevrolet/Geo Courtesy Transportation is not part
of the Bumper to Bumper New Vehicle Limited
Warranty. Chevrolet/Geo reserves
the right to make
any changes or discontinue Courtesy Transportation
at any time without notification.
Chevrolet/Geo dealer.
0 For additional program details, contact your
Some state insurance regulations make
it impractical to
rent vehicles to people under
21 years of age. If you are
under
2 1 and have difficulty renting a vehicle, Chevrolet
will reimburse up to $30/day for documented
transportation
you receive.
For warranty repairs during the Complete Vehicle
Coverage period in the New Vehicle Limited Warranty,
interim transportation may be available under the
Courtesy Transportation Program. Please consult your
dealer for details. The Roadside Assistance program is
available only in
the United States and Canada.
In Canada, please consult your GM dealer for
information
on Courtesy Transportation.
8-8

Downloaded from www.Manualslib.com manuals search engine ORDER TOLL FREE Orders will be mailed within 10 days of receipt. Please allow ade uate time for postal
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PUBLICATION FORM
ITEM DESCRIPTION VEHICLE MODEL QTY‘ EACH* PRICE
TOTAL
NUMBER NAME YEAR PRtCE
Service Manual
1997 $90.00
Car
& Light Truck
Transmission Unit Repair 1997 $40.00
Owner’s Manual
In Portfolio 1997 $1 5.00
Owner’s Manual Without Portfolio 1997 $1
0.00
1
9
9
7
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