maintenance CHEVROLET ASTRO 1996 Workshop Manual

Long Trip/Highway Maintenance Schedule
- In hilly or mountainous terrain.
- When doing frequent trailer towing.
- Uses such as found in taxi, police or
delivery service.
If you do not use your vehicle under uny oj
these conditions, change the fluid and filter every
30,000 miles (50 000 km).
0 Replace fuel filter.
0 Replace air cleaner filter.
An Emission Control Service.
An Emission Control Service.
I DATE ACTUAL MILEAGE SERVICED BY
97,500 Miles (162 500 km)
0 Change engine oil and filter (or every
12 months, whichever occurs first).
An Emission Control Service.
Lubricate chassis components; see footnote ##
(or every 12 months, whichever occurs first).
Check readfront axle fluid level and add fluid
as needed. Check constant velocity joints and
axle seals for leaking.
**
0 Rotate tires. See “Tire Incption and Rotation’’
in the Index for proper rotation pattern and
additional information. During tire rotation,
check brake calipers for freedom of movement. Refer
to the appropriate GM service manual for
oroDer calioer service Drocedures.
DATE SERVICED BY ACTUAL MILEAGE
7-39

At Least Twice a Year
Restraint System Check
Make sure the safety belt reminder light and all your
belts, buckles, latch plates, retractors and anchorages are
working properly.
Look for any other loose or damaged
safety belt system parts. If you see anything that might
keep a safety belt system from doing its job, have it
repaired. Have any torn or frayed safety belts replaced.
Also look for any opened or broken air bag covers, and
have them repaired or replaced, (The air bag system
does not need regular maintenance.)
Automatic Transmission Check
Check the transmission fluid level; add if needed. See
“Automatic Transmission’’ in the Index. A fluid
loss
may indicate a problem. Check the system and repair
if needed.
At Least Once a Year
Key Lock Cylinders Service
Lubricate the key lock cylinders with the lubricant
specified in Part
D.
Body Lubrication Service
Lubricate all body door hinges, the body hood, fuel door
and rear compartment hinges, latches and locks
including interior glove box and console doors, and
any
moving seat hardware. Lubricate the hood safety lever
pivot and prop rod pivot. Part
D tells you what to use.
More frequent lubrication may be required
when
exposed to a corrosive environment.
7-42

Part C: Periodic Maintenance
Inspections
Listed below are inspections and services which should
be performed
at least twice a year (for instance, each
spring and fall). You should let your GM dealer’s
service department or other qualified service center do
these jobs. Make sure any necessary repairs are
completed at once.
Proper procedures to perform these services may be
found
in a GM Service Manual. See “Service and Owner
Publications’’
in the Index.
Steering and Suspension Inspection
Inspect the front and rear suspension and steering
system for damaged, loose or missing parts, signs of
wear or lack of lubrication. Inspect the power steering
lines and hoses for proper hook-up, binding, leaks,
cracks, chafing, etc.
Exhaust System Inspection
Inspect the complete exhaust system. Inspect the body
near the exhaust system. Look for broken, damaged,
missing or out-of-position parts as well as open seams,
holes, loose connections
or other conditions which could
cause a heat build-up
in the floor pan or could let
exhaust fumes into the vehicle. See “Engine Exhaust’’
in the Index.
Radiator and Heater Hose Inspection
Inspect the hoses and have them replaced if they are
cracked, swollen or deteriorated. Inspect all pipes,
fittings and clamps; replace as needed.
Throttle Linkage Inspection
Inspect the throttle linkage for interference or binding,
and for damage or missing
parts. Replace parts as
needed. Replace any cables
that have high effort or
excessive wear.
Do not lubricate accelerator and cruise
control cables.
7-45

Part E: Maintenance Record
After the scheduled services are performed, record the
date, odometer reading and who performed
the service
in the boxes provided after the maintenance interval.
Any additional information from “Owner Checks and aervices”
or “Periodic Maintenance” can be added on
the following record pages. Also, you should retain all
maintenance receipts. Your owner information portfolio
is a convenient place to store them.
Maintenance Record
ODOMETER
DATE READING SERVICED
BY MAINTENANCE PERFORMED
7-49

I
Maintenance Record
SERVICED BY MAINTENANCE PERFORMED
7 cn

Service Manuals
Service ,manuals contain diagnostic and repair
information for all chassis and body systems. They
may be useful for owners who wish to get a greater
understanding of their vehicle. They are also useful for
owners with the appropriate skill level or training who
wish to perform “do-it-yourself’ service. These are
authentic General Motors service manuals meant for
professional, qualified technicians.
Service Bulletins
Service bulletins covering various subjects are regularly
sent to all General Motors dealerships. GM monitors
product performance in the field. When service methods
are found which promote better service on
GM vehicles,
bulletins are created to help the technician perform
better service. Service bulletins may involve any number
of vehicles. Some will describe inexpensive
service; others will describe expensive service. Some
will advise of new or unexpected conditions, and others
may help avoid future costly repairs. Service bulletins
are meant for qualified technicians. In some cases
bulletins refer to service manuals, specialized tools,
equipment and safety procedures necessary
to service
the vehicle. Since these bulletins are issued throughout
the model year and beyond, an index is required and
published quarterly to help identify specific bulletins.
Subscriptions are available. You can order an index at
the toll-free numbers listed previously, or ask
a GM
dealer to see an index or individual bulletin.
Owner Publications
Owner’s manuals, warranty folders and various owner
assistance booklets provide owners with general
operation and maintenance information.
8-10

Instrumentpanel ............................... 2-50
Brightness Control
.................... i ....... 2-35
Cleaning
.................................... 6-53
Cluster
..................................... 2-52
FuseBlock
.................................. 6-61
Interior Lamps
................................. 2-37 Charging System
........................... 2-55
Check Gages
................................ 2-63
Check Oil
................................... 2-61
Daytime Running Lamps Indicator
............... 2-62
Safety Belt Reminder
..................... 1 - 12. 2-54
Service Engine Soon
.......................... 2-58
Loading Your Vehicle
........................... 4-26 .
J
Locks
ack. Tire .................................... 5-24
Cylinders ................................... 7-42
Jump Starting ................................... 5-2
Door ........................................ 2-5
Key Lock Cylinders Service
..................... 7-42
Keyless Entry System
............................ 2-7
Keys
.......................................... 2-1
Key Lock Cylinder Service ..................... 7-42
PowerDoor
.................................. 2-6
Sliding Door Child Security
..................... 2-10
Steering Column Lock Check
................... 7-44
Lubricants and Fluids
............................ 7-47
Lubrication Service. Body
........................ 7-42
Luggagecarrier
................................ 2-47
Certificationflire
............................. 4-26 Lumbar Controls ................................ 1-2
Service Parts Identification ..................... 6-59
Tire-Loading Information
...................... 4-26
Vehicle Identification Number
................... 6-59
Lamps ........................................ 2-35
Dome
...................................... 2-37
Interior
..................................... 2-37
OnReminder
................................ 2-36
Latches. Seatback ................................ 1-5
Leaving Your Vehicle ............................. 2-6
Leaving Your Vehicle with the Engine Running
....... 2-24
Lighter
....................................... 2-48
Lights
Air Bag Readiness ....................... 1-25. 2-54
Anti-Lock Brake System Warning
............ 2-57. 4-6
Brake System Warning
......................... 2-57 Maintenance.
Normal Replacement Parts
........... 6-69
Maintenance Record
............................ 7-49
Maintenance Schedule
............................ 7-1
Long Trip/Highway Definition
................... 7-5
Long TripMighway Intervals
..................... 7-5
Owner Checks and Services
..................... 7-41
Periodic Maintenance Inspections
................ 7-45
Recommended Fluids and Lubricants
............. 7-47
Scheduled Maintenance Services
.................. 7-2
Short Trip/City Definition
....................... 7-4
Short Trip/City Intervals ........................ 7-4
Maintenance. Underbody ......................... 6-X
9-5

Maintenance When Trailer Towing ............... 4-36
Malfunction Indicator Lamp
...................... 2-58
ManualFrontSeat
............................... 1-1
Manual Lumbar Support .......................... 1-2
Methanol
...................................... 6-4
Mirrors
....................................... 2-38
Convex Outside
.............................. 2-39
Inside Day/Night Rearview
..................... 2-38
Outside
..................................... 2-39
Visor Vanity ................................. 2-49
MMT
......................................... 6-3
ModelReference
................................. vi
Mountain Roads ........ ................ 4-20
Net. Convenience
.............................. 2-46
Neutral
....................................... 2-19
New Vehicle Break-In
........................... 2- I3
Nightvision
................................... 4-13
Odometer
.................................... 2-53
Odometer. Trip
................................. 2-53
Off-Road Recovery
............................. 4- IO
Oil. Engine .................................... 6-11
Opener. Garage Door ............................ 2-43
Outside Mirror
................................. 2-39
Overhead Console
.............................. 2-42
Overheating Engine
............................. 5- I3
Owner Checks and Services
....................... 7-41
Owner Publications. Ordering ...................... 8-9
Paint Spotting. Chemical ........................ 6-57
Park
......................................... 2-18
Shifting Into
................................. 2-22
Shifting Out
of ............................... 2-25
AtNight
.................................... 2-13
Brake ...................................... 2-21
Brake Mechanism Check
....................... 7-44
Lots
....................................... 2-13
Over Things That Burn
......................... 2-25
With
a Trailer ................................ 4-36
Passing
....................................... 4-10
Payload
....................................... 4-28
Periodic Maintenance Inspections
.................. 7-45
Power Accessory Outlet
............................. 2-49
DoorLocks
................................... 2-5
Option Fuses
................................ 6-60
Seat ......................................... 1-3
Steering ..................................... 4-8
Steering Fluid
................................ 6-30
Windows
.................................... 2-27
Pregnancy, Use of Safety Belts
.................... 1-30
Problems on the Road
............................ 5-1
Publications, Service and Owner .................... 8-9
Parking
Radiator
..................................... 5-19
Radiator Pressure Cap ........................... 6-29
Radio Reception
................................ 3-26
Radios
........................................ 3-8
Rain. Driving In ................................ 4-14
Reading
Lamps ................................ 2-38
9-6

Rear Air Conditioning System
.................... 3-4
Axle
....................................... 6-25
Heating System
............................... 3-4
Outside Seat Position
.......................... 1-3 I
Safety Belt Comfort Guides ..................... 1-36
SeatAudio
.................................. 3-22
Seatpassengers
.............................. 1-31
Storage
..................................... 2-40
Towing
................................ 5.11. 5.12
Window Defogger
............................. 3-7
Windshield Washer
........................... 2-3 I
Rearview Mirror ................................ 2-38
Reclining Front Seatbacks
......................... 1-3
Recovery Tank, Coolant
.......................... 5- 15
Refrigerants. Air Conditioning
.................... 6-68
Regulator.
Fuel ................................. 2- 16
Removable Rear Seats ............................ 1-8
Replacement Bulbs
...................................... 6-66
Parts
....................................... 6-69
Wheel
...................................... 6-47
Replacing Safety Belts
........................... 1-52
Reporting Safety Defects
.......................... 8-8
Restraints Checking
................................... 1-52
Child ....................................... 1-41
Head
........................................ 1-5
Replacing Parts After
a Crash ................... 1-52
Systemcheck
................................ 7-42
Reverse
....................................... 2-19
Right Front Passenger Position
.................... 1-3 I
Roadside Assistance .............................. 8-4 Roadside Assistance. Canadian
......... ....... 8-6
Rocking Your Vehicle
........................... 5-37
Rotation. Tires
...................... ...... 6-44
Safety Belt Extender
............................ 1-51
Safety Belt Comfort Guides
....................... 1-36
Safety Belts
................................... 1 . 11
Adults ...................................... 1-16
Care
....................................... 6-53
Center Passenger Position
...................... 1-34
Children
.................................... 1-38
Driver Position
............................... 1-16
Extender
.................................... 1-51
How
to Wear Properly ......................... 1-16
Incorrect Usage
.................... 1.19. 1-50, 1-51
LapBelt
.................................... 1-34
Lap-Shoulder
........................... 1 . 16, 1-3 1
Questions and Answers ........................ 1 . 15
Rear Seat Outside Passenger Positions
............ 1-31
Rear Seat Passengers
.......................... 1-31
Reminder Light
......................... 1 - 12. 2-54
Replacing Atter
a Crash ........................ 1-52
Right Front Passenger Position .................. 1-31
Shoulder Belt Height Adjuster
................... 1 . 18
Smaller Children and Babies. Cargo Vans .......... 1-40
Smaller Children and Babies. Except Cargo Vans
.... 1-38
Use During Pregnancy
......................... 1-30
WhyThey Work
.............................. 1-12
Safety Defects. Reporting ......................... 8-8
Safety Warnings and Symbols
....................... 111
Scheduled Maintenance Services .................... 7-3
Larger Children
.............................. 1-49
Safety Chains
.................................. 4-32
...
9-7

Tire Loading ............................... 4-26
Alignment and Balance
........................ 6-47
Buying New
................................. 6-45
Chains
..................................... 6-49
Changing a Flat
.............................. 5-23
Cleaning
.................................... 6-56
Compact Spare
............................... 5-36
Inflation
.................................... 6-43
Inflation Check
............................... 7-41
Inspection and Rotation
........................ 6-44
Loading
.................................... 4-26
Pressure
.................................... 6-43
Temperature
................................. 6-47
Traction
.................................... 6-47
Treadwear
................................... 6-46
Uniform Quality Grading
....................... 6-46
Wear Indicators
.............................. 6-45
When It's Time for New
....................... 6-45
TopStrap
..................................... 1-42
TorqueLock
................................... 2-24
Tire-Loading
Information Label
................... 4-26
Tires
......................................... 6-42
Wheel Replacement
........................... 6-47
Torque. Wheel
Nut ......................... 5-33. 6-67
Towing
a Trailer ................................ 4-29
Towing Your Vehicle
............................. 5-6
Driving on Grades ............................ 4-35
Trailer
Brakes
..................................... 4-33
Drivingwith
................................. 4-33
Hitches
..................................... 4-32
Maintenance When Towing
..................... 4-36
Parking
on Hills .............................. 4-36 Safety
Chains
................................ 4-32
Tongueweight
............................... 4-31
Total Weight on Tires
.......................... 4-32
Towing
..................................... 4-29
Turnsignals
................................. 4-35
Weight
..................................... 4-30
Wiring Harness
............................... 4-37
Transmission Fluid. Automatic
.................... 6-20
Transmitters. Keyless Entry
........................ 2-7
Transportation. Courtesy
.......................... 8-6
Trip Odometer
................................. 2-53
TTY Users
..................................... 8-3
Turn Signal and Lane Change Signals
............... 2-30
Turn Signal/Multifunction Lever
................... 2-29
Turn Signals When Towing
a Trailer ................ 4-35
Two-way Manual Seat
........................... 1-2
Underbody 'Maintenance ....... ........... 6-56
Underhood Electrical Center
...................... 6-64
Vehicle Control
...................................... 4-5
Damage Warnings
.............................. iv
Dimensions ................................. 6-69
Identification Number
......................... 6-59
Loading .................................... 4-26
Storage
..................................... 6-36
Ventilation System
............................... 3-6
Visor Vanity Mirrors
............................ 2-49
Visors. Sun
.................................... 2-49
Voltmeter
................................. 2-55
9-9