wheel CHEVROLET ASTRO 1999 Repair Manual

Short Trip/City Scheduled Maintenance
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7-19
57,000 Miles (95 000 km)

Change engine oil and filter (or every 3 months, whichever occurs first).
An Emission Control Service.

Lubricate chassis components (or every 3 months, whichever occurs first).
(See footnote #.)

Check rear/front axle fluid level and add fluid as needed. Check constant
velocity joints and axle seals for leaking. (See footnote **.)
60,000 Miles (100 000 km)

Change engine oil and filter (or every 3 months, whichever occurs first).
An Emission Control Service.

Lubricate chassis components (or every 3 months, whichever occurs first).
(See footnote #.)

Check rear/front axle fluid level and add fluid as needed. Check constant
velocity joints and axle seals for leaking. (See footnote **.)

For Two
-Wheel-Drive vehicles only: Clean and repack the front wheel
bearings (or at each brake relining, whichever occurs first).

Change automatic transmission fluid and filter if the vehicle is mainly driven
under one or more of these conditions:
± In heavy city traffic where the outside temperature regularly reaches
90
F (32
C) or higher.
(Continued)
ACTUAL
SERVICED BY:MILEAGE
DATE
ACTUAL
SERVICED BY:MILEAGE
DATE

Short Trip/City Scheduled Maintenance
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7-22
72,000 Miles (120 000 km)

Change engine oil and filter (or every 3 months, whichever occurs first).
An Emission Control Service.

Lubricate chassis components (or every 3 months, whichever occurs first).
(See footnote #.)

Check rear/front axle fluid level and add fluid as needed. Check constant
velocity joints and axle seals for leaking. (See footnote **.)

Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.)
75,000 Miles (125 000 km)

Change engine oil and filter (or every 3 months, whichever occurs first).
An Emission Control Service.

Lubricate chassis components (or every 3 months, whichever occurs first).
(See footnote #.)

For Two
-Wheel-Drive vehicles only: Clean and repack the front wheel
bearings (or at each brake relining, whichever occurs first).

Change automatic transmission fluid and filter if the vehicle is mainly driven
under one or more of these conditions:
± In heavy city traffic where the outside temperature regularly reaches
90
F (32
C) or higher.
ACTUAL
SERVICED BY:MILEAGE
DATE
ACTUAL
SERVICED BY:MILEAGE
DATE

Short Trip/City Scheduled Maintenance
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7-25

Check rear/front axle fluid level and add fluid as needed. Check constant
velocity joints and axle seals for leaking. (See footnote **.)
90,000 Miles (150 000 km)

Change engine oil and filter (or every 3 months, whichever occurs first).
An Emission Control Service.

Lubricate chassis components (or every 3 months, whichever occurs first).
(See footnote #.)

Check rear/front axle fluid level and add fluid as needed. Check constant
velocity joints and axle seals for leaking. (See footnote **.)

For Two
-Wheel-Drive vehicles only: Clean and repack the front wheel
bearings (or at each brake relining, whichever occurs first).

Change automatic transmission fluid and filter if the vehicle is mainly driven
under one or more of these conditions:
± In heavy city traffic where the outside temperature regularly reaches
90
F (32
C) or higher.
± 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 any of these conditions, change the fluid
and filter every 50,000 miles (83 000 km).
(Continued)
ACTUAL
SERVICED BY:MILEAGE
DATE

Long Trip/Highway Scheduled Maintenance
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7-32
30,000 Miles (50 000 km) (Continued)

Lubricate chassis components (or every 12 months, whichever occurs first).
(See footnote #.)

Check rear/front axle fluid level and add fluid as needed. Check constant
velocity joints and axle seals for leaking. (See footnote **.)

For Two
-Wheel-Drive vehicles only: Clean and repack the front wheel
bearings (or at each brake relining, whichever occurs first).

Change automatic transmission fluid and filter if the vehicle is mainly driven
under one or more of these conditions:
± In heavy city traffic where the outside temperature regularly reaches
90F (32C) or higher.
± 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 any of these conditions, change the fluid
and filter every 50,000 miles (83 000 km).
Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.)
Replace fuel filter.
An Emission Control Service. (See footnote
.)
Replace air cleaner filter.
An Emission Control Service.

Long Trip/Highway Scheduled Maintenance
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7-35

Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.)
60,000 Miles (100 000 km)

Change engine oil and filter (or every 12 months, whichever occurs first).
An Emission Control Service.

Lubricate chassis components (or every 12 months, whichever occurs first).
(See footnote #.)

Check rear/front axle fluid level and add fluid as needed. Check constant
velocity joints and axle seals for leaking. (See footnote **.)

For Two
-Wheel-Drive vehicles only: Clean and repack the front wheel
bearings (or at each brake relining, whichever occurs first).

Change automatic transmission fluid and filter if the vehicle is mainly driven
under one or more of these conditions:
± In heavy city traffic where the outside temperature regularly reaches
90
F (32
C) or higher.
± 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 any of these conditions, change the fluid
and filter every 50,000 miles (83 000 km).
(Continued)
ACTUAL
SERVICED BY:MILEAGE
DATE

Long Trip/Highway Scheduled Maintenance
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7-38
82,500 Miles (137 500 km)

Change engine oil and filter (or every 12 months, whichever occurs first).
An Emission Control Service.

Lubricate chassis components (or every 12 months, whichever occurs first).
(See footnote #.)

Check rear/front axle fluid level and add fluid as needed. Check constant
velocity joints and axle seals for leaking. (See footnote **.)

Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.)
90,000 Miles (150 000 km)

Change engine oil and filter (or every 12 months, whichever occurs first).
An Emission Control Service.

Lubricate chassis components (or every 12 months, whichever occurs first).
(See footnote #.)

Check rear/front axle fluid level and add fluid as needed. Check constant
velocity joints and axle seals for leaking. (See footnote **.)

For Two
-Wheel-Drive vehicles only: Clean and repack the front wheel
bearings (or at each brake relining, whichever occurs first).

Change automatic transmission fluid and filter if the vehicle is mainly driven
under one or more of these conditions:
± In heavy city traffic where the outside temperature regularly reaches
90
F (32
C) or higher.
ACTUAL
SERVICED BY:MILEAGE
DATE
ACTUAL
SERVICED BY:MILEAGE
DATE

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7-46 Throttle System Inspection
Inspect the throttle system for interference or binding,
and for damaged or missing parts. Replace parts as
needed. Replace any components that have high effort
or excessive wear. Do not lubricate accelerator and
cruise control cables.
Drive Axle Service
Check rear/front axle fluid level and add as needed.
Check constant velocity joints and axle seals for leaking.
Transfer Case (All-Wheel Drive) Inspection
Every 12 months or at oil change intervals, check front
axle and transfer case and add lubricant when necessary.
Check vent hose at transfer case for kinks and
proper installation.
Brake System Inspection
Inspect the complete system. Inspect brake lines and
hoses for proper hook
-up, binding, leaks, cracks,
chafing, etc. Inspect disc brake pads for wear and rotors
for surface condition. Also inspect drum brake linings
for wear and cracks. Inspect other brake parts, including
drums, wheel cylinders, calipers, parking brake, etc.
Check parking brake adjustment. You may need to have
your brakes inspected more often if your driving habits
or conditions result in frequent braking.

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7-48
USAGEFLUID/LUBRICANT
Front Wheel
BearingsWheel Bearing Lubricant meeting
requirements of NLGI # 2,
Category GC or GC
-LB (GM Part
No. 1051344 or equivalent).
Front and Rear
Axle (Standard
Differential)SAE 80W-90 Axle Lubricant (GM
Part No. 1052271 or equivalent).
Rear Axle
(Locking
Differential)SAE 80W-90 Axle Lubricant; use
only GM Part No. 1052271. Do
not add friction modifier.
Automatic
Transfer CaseAutomatic Transfer Case Fluid
(GM Part No. 12378396).
USAGEFLUID/LUBRICANT
Hood Latch
Assembly,
Secondary Latch,
Pivots, Spring
Anchor and
Release PawlLubriplate
Lubricant Aerosol
(GM Part No. 12346293 or
equivalent) or lubricant meeting
requirements of NLGI # 2,
Category LB or GC
-LB.
Hood and Door
HingesMulti-Purpose Lubricant,
Superlube
(GM Part
No. 12346241 or equivalent).
Weatherstrip
ConditioningDielectric Silicone Grease (GM
Part No. 12345579 or equivalent).

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8-5 Canada
General Motors of Canada Limited
Customer Communication Centre, 163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
1-800-263-3777 (English)
1-800-263-7854 (French)
1-800-263-3830 (For Text Telephone devices (TTYs))
Roadside Assistance: 1-800-268-6800
All Overseas Locations
GMODC - Customer Communication Centre
169-007
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
Telephone: 905-644-4112
Fax: 905-644-4866
Caribbean Numbers
1-800-496-9992 (English) Puerto Rico
1-800-496-9993 (Spanish) Puerto Rico
1-800-751-4135 (English) Dominican Republic
1-800-751-4136 (Spanish) Dominican Republic
1-800-496-9994 U.S. Virgin Islands
1-800-389-0009 Bahamas
1-800-534-0122 Bermuda, Barbados, Antigua & B.V.I.If toll free service is not available in the Caribbean,
call Puerto Rico 1-787-763-1315.
GM Mobility Program for Persons
with Disabilities
This program, available to
qualified applicants, can
reimburse you up to $1,000
toward aftermarket driver or
passenger adaptive
equipment you may require
for your vehicle (hand
controls, wheelchair/scooter
lifts, etc.).
This program can also provide you with free resource
information, such as area driver assessment centers and
mobility equipment installers. The program is available
for a limited period of time from the date of vehicle
purchase/lease. See your dealer for more details or call
the GM Mobility Assistance Center at 1
-800-323-9935.
Text telephone (TTY) users, call 1
-800-833-9935.
GM of Canada also has a Mobility Program. Call
1
-800-GM-DRIVE (463-7483) for details. When
calling from outside Canada, please dial 1
-905-644-3063.
All TTY users call 1
-800-263-3830.

9-yellowblue
9-1
Section 9 Index
A
ccessory Power Outlet 2-51 . . . . . . . . . . . . . . . . . . . . . . . . .
Add-On Equipment 4-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Bag 1-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adding Equipment 1-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How Does it Restrain 1-31 . . . . . . . . . . . . . . . . . . . . . . . . . .
How it Works 1-29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Location 1-29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Readiness Light 1-28, 2-60 . . . . . . . . . . . . . . . . . . . . . . . . .
Servicing 1-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
What Makes it Inflate 1-31 . . . . . . . . . . . . . . . . . . . . . . . . . .
What Will You See After it Inflates 1-31 . . . . . . . . . . . . . . .
When Should it Inflate 1-30 . . . . . . . . . . . . . . . . . . . . . . . . .
Air Cleaner Filter 6-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Conditioning 3-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Conditioning Refrigerants 6-68 . . . . . . . . . . . . . . . . . . . . .
Alignment and Balance, Tire 6-49 . . . . . . . . . . . . . . . . . . . . . .
All-Wheel Drive 2-29, 6-24 . . . . . . . . . . . . . . . . . . . . . . . . . .
Aluminum Wheels, Cleaning 6-56 . . . . . . . . . . . . . . . . . . . . . .
Antenna, Fixed Mast 3-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Antifreeze 6-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Anti-Lock
Brake System Warning Light 2-63, 4-7 . . . . . . . . . . . . . . . .
Brakes 4-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Anti-Theft, Radio 3-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appearance Care 6
-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appearance Care Materials 6-58 . . . . . . . . . . . . . . . . . . . . . . .
Arbitration Program 8-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ashtrays 2-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Audio Equipment, Adding 3-29 . . . . . . . . . . . . . . . . . . . . . . . .
Audio Systems 3-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic
Transmission Check 7
-42 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transmission Operation 2-20 . . . . . . . . . . . . . . . . . . . . . . . .
Transmission Fluid 6-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AWD, Service Light 2-68 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Axle
Front 6
-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Locking Rear 2-29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear 6-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery 6-35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jump Starting 5-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement, Remote Keyless Entry 2-9 . . . . . . . . . . . . . . .
Warnings 5-3, 5-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BBB Auto Line 8-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Better Business Bureau Mediation 8-3 . . . . . . . . . . . . . . . . . . .
Blizzard 4-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .