1996 CHEVROLET ASTRO engine coolant

Radiator Pressure Cap
NOTICE:
Your radiator cap is a 15 psi (105 kPa)
pressure-type cap and must be tightly installed to
prevent coolant loss and possible engine damage
from overheating. Be sure the arrows on the cap
line
up with the overflow tube on the radiator
filler neck.
When you replace your radiator pressure cap, a GM cap
is recommended. See “Normal Maintenance
Replacement Parts” in the Index.
6-29

Thermostat When to Check Power Steering Fluid
Engine coolant temperature is controlled by a thermostat It is not necessary to reg,ularlY check Power steering
in the engine coolant system. The thermostat stops the fluid unless you suspect there is a leak in the system or
flow
of coolant through the radiator until the coolant you
hear an unusual noise. A fluid loss in this system
reaches a preset temperature. could indicate
a problem. Have the system inspected
and remired.
Power Steering Fluid
I
How To Check Power Steering Fluid
When the engine compartment is cool, unscrew the cap
and wipe
the dipstick with a clean rag. Replace the cap
and completely tighten
it. Then remove the cap again
and look at the fluid level
on the dipstick.
The level should be at the
FULL COLD mark. If
necessary, add only enough fluid to bring the level up to
the mark.
What to Use
Refer to the Maintenance Schedule to determine what
kind
of fluid to use. See “Recommended Fluids and
Lubricants’’
in the Index. Always use the proper fluid.
Failure to use the proper fluid can cause leaks and
damage hoses and seals.
6-30

100,000 Miles (1 66 000 km)
0 Drain, flush and refill cooling system
(or every
60 months since last service,
whichever occurs first). See “Engine
Coolant”
in the Index for what to use.
Inspect hoses. Clean radiator, condenser,
pressure cap and neck. Pressure test
cooling system and pressure cap.
An Emission Control Service.
0 Inspect spark plug wires.
Cl Replace spark plugs.
An Emission Control Service.
0 Inspect Positive Crankcase Ventilation
(Pcv) valve.
An Emission Control Service.
An Emission Control Service.
I DATE SERVICED BY ACTUAL MILEAGE
Short
TripKity Maintenance Schedule
99,000 Miles (165 000 km)
0 Change engine oil and filter (or every
3 months, whichever occurs first).
An Emission Control Service.
0 Lubricate chassis components; see
footnote
# (or every 3 months, whichever
occurs first).
0 Check readfront axle fluid level and add
fluid as needed. Check constant velocity
joints and axle seals
for leaking. **
DATE
SERVICED BY: ACTUAL MILEAGE
7-28

Long Trip/Highway M
100,000 Miles (166 000 km)
0 Drain, flush and refill cooling system
(or every
60 months since last service,
whichever occurs first). See “Engine
Coolant”
in the Index for what to use.
Inspect hoses. Clean radiator, condenser,
pressure cap and neck. Pressure test
the cooling system and pressure cap.
An Emission Control Service. 3-
0 Inspect spark plug wires.
An Emission Control Service.
0 Replace spark plugs.
0 Inspect Positive Crankcase Ventilation
An Emission Control Service.
(PCV) valve.
An Emission Control Service.
DATE
SERVICED BY: ACTUAL MILEAGE
7-40

Part B: Owner Checks and Services
Listed below are owner checks and services which
should be performed at the intervals specified
to help
ensure the safety, dependability and emission control
performance of your vehicle.
Be sure
any necessary repairs are completed at once.
Whenever
any fluids or lubricants are added to your
vehicle, make sure they are the proper ones, as shown
in Part
D.
At Each Fuel Fill
It is important for you or a service station attendant to
perform these underhood checks at each
filelfill.
Engine Oil Level Check
Check the engine oil level and add the proper oil
if necessary. See “Engine Oil” in the Index for
further details.
Engine Coolant Level Check
Check the engine coolant level and add the proper
coolant mix if necessary. See “Engine Coolant” in the
Index for further details.
Windshield Washer Fluid Level Check
Check the windshield washer fluid level in the
windshield washer tank and add the proper fluid if
necessary. See “Windshield Washer Fluid”
in the Index
for further details.
At Least Once a Month
Tire Inflation Check
Make sure tires are inflated to the correct pressures.
See “Tires” in the Index for further details.
Cassette Deck Service
Clean cassette deck. Cleaning should be done every
50 hours of tape play. See “Audio Systems” in the
Index for further details.
7-41

Part D: Recommended Fluids and
Lubricants
NOTE: Fluids and lubricants identified below by name,
part number or specification may be obtained from your
GM dealer.
USAGE
Engine Oil
Engine Coolant
FLUID/LUBRICANT ~~~ ~
Engine oil with the American
Petroleum Institute Certified For Gasoline Engines “Starburst”
symbol of the proper viscosity. To
determine the preferred viscosity
for your vehicle’s engine, see
“Engine Oil’’ in the Index.
~~
50/50, mixture of clean water
(preferably distilled) and GM
Goodwrench@ DEX-COOL
TM or
Havoline@ DEX-COOL
TM
(orange-colored, silicate-free)
antifreeze conformiag to GM
Specification 6277M. See “Engine
Coolant” in the Index.
USAGE
Coolant
Supplement
Sealer
Hydraulic Brake
System
~~~~~~~
Parking Brake
Cable Guides
Power Steering
System
Automatic
Transmission
Key Lock
Cylinders
FLUIDLUBRICANT
GM Part No. 3634621 or
equivalent with a complete flush
and refill.
-
Delco Supreme 11 @ Brake Fluid
(GM Part No. 1052535 or
equivalent DOT-3 brake fluid).
Chassis.1ubricant (GM Part
No. 1052497 or equivalent) or
lubricant meeting requirements of
NLGI Grade 2, Category
LB or
GC-LB.
GM Power Steering Fluid
(GM Part No. 1052884
- 1 pt.,
1050017
- 1 qt., or equivalent).
DEXRON@-I11 Automatic
Transmission Fluid.
Multi-Pu ose Lubricant,
Superlube
% (GM Part
No. 1234624 1 or equivalent).
7-47

Brakes. Anti-Lock ............................... 4-6
Braking
........................................ 4-5
Braking
in Emergencies ........................... 4-8
Break-In. New Vehicle
.......................... 2- 13
BTSICheck ................................... 7-43
Bulb Replacement
.............................. 6-36
Canadian Roadside Assistance
.................... 8-6
Capacities and Specifications
...................... 6-67
Carbon Monoxide
............... 2.26.4.25.4.32. 4.33
Cassette Deck Service
........................... 7-41
Cassette Tape Player
.................. 3- 10. 3. 12. 3.20
Cassette Tape Player Care
........................ 3-27
Center Passenger Position
........................ 1-34
Chains. Safety
................................. 4-32
Chains. Tire
................................... 6-49
Changing a Flat Tire
............................. 5-23
Charging System Light
.......................... 2-55
Check Gages Light
.............................. 2-63
Check Oil Light
................................ 2-61
Checking
Your Restraint Systems .................. 1-52
Chemical Paint Spotting
.......................... 6-57
Child Restraints
................................ 1-4 I
Securing in a Rear Outside Seat Position ........... 1-43
Securing
in the Center Seat Position .............. 1-45
Securing
in the Right Front Seat Position .......... 1-46
TopStrap
................................... 1-42
Where to Put
........................... 1-4 I. 1-42
Cigarette Lighter
............................... 2-48
Circuit Breakers and Fuses
....................... 6-61
Cleaner. Air ................................... 6-19 Cleaning
Aluminum Wheels ............................ 6-55
Fabric
...................................... 6-50
Glass
....................................... 6-53
Inside
of Your Vehicle ......................... 6-50
Instrument Panel
............................. 6-53
Leather
..................................... 6-52
Outside
of Your Vehicle ........................ 6-54
Special Problems
............................. 6-51
Stains
...................................... 6-51
Tires
....................................... 6-56
Vinyl ....................................... 6-52
Wheels
..................................... 6-55
Windshield and Wiper Blades
................... 6-53
Clock. Setting the
................................ 3-8
Comfort Controls
................................ 3-1
Compact Disc Care
............................. 3-28
Compact Disc Player
............................ 3-16
Compact Spare Tire
............................. 5-36
Control of a Vehicle .............................. 4-5
ConvenienceNet
............................... 2-46
Convex Outside Mirror
.......................... 2-39
Coolant
....................................... 6-25
Heater. Engine
............................... 2-16
RecoveryTank
............................... 5-15
Courtesy Lamps
................................ 2-37
Courtesy Transportation
........................... 8-6
Cruise Control
................................. 2-32
Customer Assistance for Text Telephone Users
......... 8-3
Customer
Assistance Information ................... 8-1
Customer Satisfaction Procedure .................... 8-1
Cooling System
................................ 5-15
9-2

Damage. Finish ........................ . . 6-56
Damage. Sheet Metal
............................ 6-56
Daytime Running Lamps
......................... 2-36
Daytime Running Lamps Indicator Light
............ 2-62
Dead Battery
................................... 5-2
Defects. Reporting Safety
......................... 8-8
Defensive Driving ............................... 4- 1
Defogger. Rear Window .......................... 3-7
Defrosting
..................................... 3-6
Dimensions. Vehicle
............................ 6-69
Dome Lamps
.................................. 2-37
Door Locks
....................................... 2-5
Sliding ...................................... 2-9
DrivePosition
................................. 2-20
DriverPosition
................................. 1-16
Driving City
........................................ 4-17
Defensive
.................................... 4-1
Drunken ..................................... 4-2
Freeway
.................................... 4-18
InaBlizzard ................................. 4-24
In Foreign Countries ........................... 6-4
In the Rain .................................. 4-14
Night
...................................... 4-13
OnCurves
................................... 4-8
On Grades While Towing
a Trailer ............... 4-35
On Hill and Mountain Roads
.................... 4-20
On Snow and Ice
............................. 4-22
Through Water
................... ....... 4-16
WetRoads
.................................. 4-14
Winter ...................................... 4-22
With a Trailer ................................ 4-33
Drunken Driving
................................ 4-2 Electrical
Equipment. Adding
........ 2- 16. 3.26. 6-60
Electrical System
............................... 6-60
Engine ........................................ 4-9
Coolant
..................................... 6-25
Coolant Heater
............................... 2-16
Coolant Level Check
.......................... 7-41
Cooling System Capacity
....................... 6-67
Cover
...................................... 6-15
Exhaust
..................................... 2-26
FuseBlocks
............................ 6-61. 6-64
Identification
................................ 6-59
OilLevelCheck
.............................. 7-41
Overheating
................................. 5-13
Running While Parked
......................... 2-26
Specifications
................................ 6-67
Starting
..................................... 2-15
Temperature Gage
............................ 2-62
Engineoil
.................................... 6-11
Adding
..................................... 6-12
Additives
................................... 6-14
Checking
................................... 6-12
Pressure Gage
........................... .... 2-60
Used
....................................... 6-15
Whentochange .............................. 6-14
Exhaust. Engine
................................ 2-26
Express-Down Window
........................ 2-28
Fabric Cleaning
............................... 6-50
Fiberglass Springs
.............................. 6-57
Filling Your Tank
................................ 6-5
Filter. Air
..................................... 6-69
Filter. Engine Oil
............................... 6-69
Finish Care
.................................... 6-54
9-3