
Downloaded from www.Manualslib.com manuals search engine The 1997 Chevrolet  Astro  Owner’s  Manual 
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Seats  and  Restraint  Systems 
This section  tells you  how to use  your  seats and safety belts  properly. It also explains the “SIR’ system. 
Features  and  Controls 
This section  explains  how to  start  and operate  your vehicle. 
Comfort  Controls  and  Audio  Systems 
This section  tells you  how to adjust the ventilation  and comfort  controls  and  how  to  operate your audio  system. 
Your Driving  and  the  Road 
Here you’ll find helpful information  and tips  about  the road and  how  to  drive under  different  conditions. 
Problems  on  the  Road 
This section tells  what  to  do if you  have a problem  while  driving, such as a flat tire  or overheated  engine,  etc. 
Service  and  Appearance  Care 
Here the  manual  tells you  how to keep  your vehicle running properly  and looking good. 
Maintenance  Schedule 
This  section tells  you  when  to  perform vehicle maintenance  and  what fluids and lubricants to  use. 
Customer  Assistance  Information 
This section tells  you  how to contact  Chevrolet for  assistance and how  to  get  service and owner publications. 
It 
also gives you information  on “Reporting Safety Defects”  on page 8-10. 
Index 
Here’s  an alphabetical listing  of almost every subject in this manual. You can  use it to quickly find 
something  you  want to read. 
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Downloaded from www.Manualslib.com manuals search engine Parking  on Hills 
You really should  not park  your  vehicle,  with a trailer 
attached,  on a hill. 
If something goes wrong, your rig 
could start  to move.  People  can be injured,  and both 
your  vehicle  and the trailer  can  be damaged. 
But  if  you  ever have 
to park your rig on a hill,  here’s 
how 
to do  it: 
1.  Apply  your regular  brakes,  but  don’t shift into 
2. Have someone place  chocks under the  trailer  wheels. 
3. When the wheel chocks  are in place, release the 
regular  brakes until  the  chocks  absorb  the load. 
PARK (P) yet. 
4. Reapply the regular brakes.  Then apply  your  parking 
5. Release the regular brakes. 
brake, 
and shift  to 
PARK (P). 
When You Are  Ready to Leave After 
Parking on a Hill 
1. Apply  your regular brakes  and  hold the pedal down 
while  you: 
0 Start your  engine; 
Shift  into  a  gear; and 
Release  the parking brake. 
2. Let  up  on the  brake  pedal. 
3. Drive slowly until  the trailer  is clear of the chocks. 
4. Stop  and have someone  pick up and  store  the chocks. 
Maintenance  When  Trailer  Towing 
Your  vehicle  will  need  service more often  when you’re 
pulling  a trailer.  See the Maintenance Schedule  for more 
on  this.  Things that are especially important in  trailer 
operation  are automatic transmission  fluid (don’t 
overfill),  engine oil, axle  lubricant,  belt, cooling system 
and  brake adjustment. Each  of these  is covered  in  this 
manual, and  the Index  will help  you 
find them  quickly. 
If  you’re trailering,  it’s a 
good idea  to  review  these 
sections before  you start  your trip. 
Check periodically  to see that  all hitch  nuts  and  bolts 
are  tight. 
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Downloaded from www.Manualslib.com manuals search engine Engine Oil Additives 
Don’t add anything to your oil.  Your GM  dealer  is ready 
to advise if you think something should  be  added. 
When to Change  Engine Oil 
If any one  of these  is true  for you, use the short  tripkity 
maintenance schedule: 
Most trips  are less than 5 to 10 miles (8 to 16 km). 
This is particularly important when  outside 
temperatures  are below  freezing. 
Most trips include  extensive idling (such  as frequent 
driving  in  stop-and-go  traffic). 
Most trips are through dusty areas. 
You  frequently tow a  trailer  or  use a carrier  on top of 
your vehicle. 
The vehicle  is used  for delivery service, police,  taxi 
or  other  commercial application. 
Driving under these conditions  causes  engine oil 
to 
break down sooner.  If any one of these is true for  your 
vehicle, then  you need to change your  oil and  filter 
every 
3,000 miles (5 000 km)  or 3 months -- whichever 
occurs  first.  If 
none 
of them is true, use the  long  triphighway 
maintenance schedule. Change the oil and filter  every 
7,500 miles (12 500 km) or 12 months -- whichever 
occurs  first.  Driving a vehicle  with a 
fully warmed 
engine  under highway  conditions causes engine 
oil to 
break down slower. 
What to Do with  Used Oil 
Did you know that  used engine  oil  contains  certain 
elements  that may  be unhealthy  for your skin and  could 
even  cause  cancer?  Don’t let used  oil stay 
on your skin 
for  very  long.  Clean your skin and nails  with soap  and 
water, 
or a good hand cleaner.  Wash or properly throw 
away  clothing  or  rags containing  used engine  oil. (See 
the manufacturer’s warnings  about the use  and  disposal 
of oil products.) 
Used oil can be a real threat 
to the environment.  If  you 
change your own  oil,  be  sure to drain all free-flowing  oil 
from the filter before disposal. Don’t  ever  dispose of oil 
by  putting 
it in the trash,  pouring it on the ground,  into 
sewers, 
or into streams  or bodies of water.  Instead, 
recycle 
it by  taking it to a place that  collects used oil. If 
you have a problem properly disposing  of your used  oil, 
ask  your dealer, a service station  or a local recycling 
center  for  help. 
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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). 
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Downloaded from www.Manualslib.com manuals search engine How to Check  Lubricant Front Axle 
If the  level  is below the bottom  of the  filler  plug hole, 
you’ll need  to add some lubricant.  Add enough lubricant 
to  raise  the  level  to  the bottom 
of the  filler plug hole. 
What to Use 
Refer  to  the  Maintenance Schedule  to determine what 
kind  of lubricant  to  use.  See  “Recommended Fluids and 
Lubricants”  in the Index. 
When to Check  and  Change  Lubricant 
Refer  to the Maintenance Schedule to determine  how 
often  to check the lubricant and when  to change  it.  See 
“Scheduled Maintenance Services” in the Index. 
How to  Check  Lubricant 
If the  level is below the 
bottom  of the filler plug 
hole, you’ll need  to add 
some lubricant.  Add enough 
lubricant to raise the level 
to  the bottom  of the  filler 
plug hole. 
What  to Use 
Refer  to the Maintenance Schedule to determine what 
kind  of lubricant  to use.  See “Recommended Fluids and 
Lubricants”  in the Index. 
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Downloaded from www.Manualslib.com manuals search engine Rear Axle What  to  Use . 
When  to  Check  and  Change  Lubricant 
Refer to the Maintenance  Schedule to  determine how 
often 
to check the lubricant and when to change it. See 
“Scheduled  Maintenance  Services” in the Index. 
How to Check  Lubricant 
If the level is below the bottom of the  filler  plug hole, 
you’ll  need 
to add some lubricant.  Add enough lubricant 
to raise 
the level to the bottom of the  filler  plug hole.  Refer to the Maintenance  Schedule to 
determine what 
kind  of lubricant  to use.  See “Recommended Fluids and 
Lubricants” 
in the Index. 
Engine Coolant 
The  cooling s stem in your vehicle  is filled  with  new 
DEX-COOL 
J engine  coolant.  This  coolant  is designed 
to remain in your  vehicle  for 5 years  or 150,000 miles 
(240 000 km)  whichever  occurs first, if  you  add only 
DEX-COOL’  extended life coolant. 
The  following  explains  your cooling  system and  how to 
add  coolant  when 
it is  low.  If you have a problem  with 
engine  overheating,  see  “Engine Overheating” 
in 
the Index. 
A 50/50 mixture of water and DEX-COOL@ coolant  for 
your vehicle 
will: 
Give  freezing  protection down  to -34°F (-37°C). 
Give boiling protection  up to 265°F (129°C). 
Protect against rust and  corrosion. 
Help keep the proper engine  temperature. 
0 Let the warning  lights  and  gages  work  as  they  should. 
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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.) 
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Downloaded from www.Manualslib.com manuals search engine Section 7 Maintenance  Schedule 
This  section  covers  the maintenance required for your vehicle.  Your vehicle needs  these  services to retain its safety, 
dependability  and emission  control  performance. 
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7-6  Introduction 
Your 
Vehicle  and the Environment 
How  This  Section  is Organized 
Part 
A: Scheduled Maintenance  Services 
Using  Your Maintenance  Schedule 
Short  Trip/City Definition 
Short  Trip/City Intervals 
Long Trip/Highway Definition  7-6 
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Long TripIHighway Intervals 
Short  Trip/City Maintenance Schedule 
Long Trip/Highway Maintenance  Schedule 
Part 
B: Owner  Checks and  Services 
Part 
C: Periodic Maintenance Inspections 
Part 
D: Recommended Fluids and Lubricants 
Part 
E: Maintenance Record 
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