coolant level CHEVROLET ASTRO PASSENGER 1994 1.G Owners Manual

Downloaded from www.Manualslib.com manuals search engine Engine Coolant Heater
If you use the optional engine coolant heater before starting your engine,
your heating system will produce warmer air faster to heat the passenger
compartment in cold weather. See “Engine Coolant Heater” in the Index.
Audio Systems
Your Delco@ audio system has been designed to operate easily and give
years
of listening pleasure. But you will get the most enjoyment out of it, if
you acquaint yourself
with it first. Find out what your Delco@ system can
do and how to operate all its controls, to be sure you’re getting the most out
of
the advanced engineering that went into it.
Be aware that hearing damage from loud noise is almost undetectable until
it is too late. Your hearing can adapt to higher volumes of sound. Sound that
seems normal can be loud and harmful to your hearing. Take precautions by
adjusting the volume control on your radio to a safe sound level before your
hearing adapts to it.
To help avoid hearing loss or damage:
0 Adjust the volume control to the lowest setting.
Increase volume slowly until you hear comfortably and clearly.
FM Stereo
FM stereo will give you the best sound. But FM signals will reach only
about
10 to 40 miles (16 to 65 km). Tall buildings or hills can interfere with
FM signals, causing the sound to come and go.
The range for most AM stations is greater than for FM, especially at night.
The longer range, however, can cause stations to interfere
with each other.
AM can pick up noise from things like storms and power lines. Try reducing
the treble to reduce this noise
if you ever get it.
AM Stereo
This means the Delco@ system can receive C-QUAM@ stereo broadcasts.
Many AM stations around the country use C-QUAM@ to produce stereo,
though some do not. (C-QUAM@ is
a registered trademark of Motorola,
Inc.) If your Delco@ system can get C-QUAM@, your
“STEREO” light will
come on
when you’re receiving it.

Downloaded from www.Manualslib.com manuals search engine When you decide it’s safe to lift the hood, here’s what you’ll see:
A. Coolant recovery tank
B. Radiator pressure cap
C. Engine fan
If the coolant inside the coolant recovery tank is boiling, don’t do anything
else until it cools down.
The
coolant level should be at or above FULL. If it isn’t, you may have a
leak in the radiator hoses, heater hoses, radiator, water pump or somewhere
else in the cooling system.
NOTICE:
Engine damage from running your engine without coolant isn’t \
covered by your warranty.
If there seems to be no leak, start the engine again. See if the fan speed
increases when idle speed
is doubled by pushing the accelerator pedal down.
If it doesn’t, your vehicle needs service. Turn
off the engine.
5-13

Downloaded from www.Manualslib.com manuals search engine How to Add Coolant to the Coolant Recovery Tank
If you haven’t found a problem yet, but the coolant level \
isn’t at or above
the
FULL mark, add a 50/50 mixture of clean water (preferably distilled)
and
a proper antifreeze at the coolant recovery tank. (See “Engine Coolant”
in the Index for more information about the proper coolant mix.)
..
..
I NOTICE:
In cold weather, water can freeze and crack the engine, radiator,
heater core and other parts. Use the recommended coolant.
When the coolant in the coolant recovery tank is at or above the FULL,
mark, start your vehicle.
If the overheat warning continues, there’s one more thing
you can try. You
can add
the proper coolant mix directly to the radiator, but be sure the
cooling system
is cool before you do it.

Downloaded from www.Manualslib.com manuals search engine I
4. Then fill the
coolant recovery tank to
FULL.
5. Put the cap back
on the coolant
recovery tank,
but leave the
radiator pressure
cap off.
6. Start the engine
and let it run until
you can feel the
upper radiator
hose getting hot.
Watch out for
the
engine fan.
7. By this time the coolant level inside the radiator filler neck may be
lower.
If the level is lower, add more of the proper mix through the
filler neck
until the level reaches the base of the filler neck.
5-17

Downloaded from www.Manualslib.com manuals search engine Service & Appearance Care
...
Section
Here you will find information about the care of your vehicle . This part
begins with service and fuel information. and then it shows how to check
important fluid and lubricant levels
. There is also technical information
about your vehicle. and a section devoted to its appearance care
.
Service ................................................... 6-2
Fuel
..................................................... 6-3
Checking Things Under the Hood
.............................. 6-7
Hood Release
........................................... 6-7
Engineoil
.............................................. 6-9
Enginecover
.......................................... 6-15
Air Cleaner
............................................ 6-19
Automatic Transmission Fluid ............................. 6-20
RearAxle
............................................. 6-24
All-WheelDrive
........................................ 6-24
Transfercase
.......................................... 6-24
FrontAxle
............................................. 6-25
Engine Coolant
....................................... 6-26
Windshield Washer Fluid
................................. 6-31
Brake Master Cylinder
................................... 6-32
Replacing Brake System Parts
.................... ........ 6-35
Battery
.................................................. 6-35
Vehiclestorage
......................................... 6-35
FluidLeakCheck
.......................................... 6-36
Bulb Replacement
......................................... 6-36
Other Maintenance Items
.................................... 6-41
Tires
.................................................... 6-47
Appearancecare
.......................................... 6-54
Vehicle Identification Number
................................ 6-63
Service Parts Identification Label
..................... .... 6-65
Capacities and Specification Charts
................ . . 6-68
Fuses and Circuit Breakers ........... 6-72
Power Steering Fluid .................................. 6-30
Loading Your Vehicle
.... .............................. 6-44
6-1

Downloaded from www.Manualslib.com manuals search engine I NOTICE:
If you use an improper coolant mix, your engine could overheat
and be badly damaged. The repair cost wouldn’t be covered by
your warranty. Too much water in the mix can freeze and crack
the engine, radiator, heater core and other parts.
Some conditions, such as air trapped in the cooling system, can affect the
coolant level
in the radiator. Check the coolant level when the engine is cold
and follow the steps under “Adding Coolant” for the proper way to add
coolant.
If you have to add coolant more than four times a year, have your dealer
check your cooling system.
I NOTICE:
If you use the proper coolant, you don’t have to add extra
inhibitors or additives which claim to improve the system. These
can be harmful.
Adding Coolant
To Check Coolant
When your engine is cold, the coolant level should be at COLD LEVEL, or
a little higher. When your engine is warm, the level should be up
to COLD
LEVEL, or a little higher.
6-27

Downloaded from www.Manualslib.com manuals search engine Explanation Of Scheduled Maintenance Services
Below are explanations of the services listed in the maintenance charts.
The proper fluids and lubricants to use are listed
in this section. Make sure
whoever services your vehicle uses these. All parts should
be replaced and
all necessary repairs done before you or anyone else drives the vehicle.
1.
2.
3.
4.
5.
ENGINE OIL AND OIL FILTER CHANGE“ - ALWAYS USE
API SERVICE
SH OR SG ENERGY CONSERVING I1 OILS OF THE
PROPER VISCOSITY. The
“SH7 or “SG7 designation may be shown
alone or in combination with others, such as “SWCD”, or
“SH, SG,
CD,” or “SG/CD”, etc. To determine the preferred viscosity oil for your
vehicle’s engine see “Engine Oil”
in the Index.
CHASSIS LUBRICATION - Lubricate the front suspension,
steering linkage, transfer case shift linkage, parking brake cab\
le guides,
and brake pedal springs at the intervals specified on the proper
maintenance schedule, or at every engine oil change, whichever \
comes
first.
Ball joints and king pin bushings should not be lubricated unless their
temperature is
10°F (-1 2°C) or higher. When the weather is cold, let
them warm up before lubricating them or they could be damaged.\

Also, be sure to check all the vehicle fluid levels at this \
time.
COOLING SYSTEM SERVICE* - Drain, flush and refill the
system
with new or approved recycled coolant conforming to “GM
Specification 6038-M”. See “Engine Coolant”
in the Index for the
proper coolant and mixture to use
in your vehicle.
Also inspect the hoses and replace them
if they are cracked, swollen, or
deteriorated. Clean the outside of the radiator and air conditioning
condenser. Wash the radiator neck.
To ensure proper operation,
pressure test the radiator and cap.
AIR CLEANER FILTER REPLACEMENT* - Replace at
specified intervals. Ask your dealer for the proper replacement
intervals for your driving conditions.
FRONT WHEEL BEARING REPACK
(2-WHEEL DRIVE ONLY)
- Clean and repack the front wheel
bearings at each brake relining,
or at the specified interval, whichever
comes first.
* An Emission Control Service
7-7

Downloaded from www.Manualslib.com manuals search engine Service Station Checks
It is important for you or a service station attendant to perform these
under-hood checks at each fuel fill.
0 Check the engine oil level and add if necessary.
Check the engine coolant level and add if necessary.
Check the windshield washer fluid level and add if necessary.
See the Index under these items for information on how to check them.
7-16