engine coolant CHEVROLET BLAZER 1995 2.G User Guide

Downloaded from www.Manualslib.com manuals search engine 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 the
ADD mark. 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.
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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 ADD, 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.) ..
NOTICE:
In cold weather, water can freeze and crack the engine, radiat\
or,
heater core and other parts. Use the recommended coolant.
1
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Downloaded from www.Manualslib.com manuals search engine When the coolant in the coolant recovery tank is at ADD, 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.
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Downloaded from www.Manualslib.com manuals search engine How to Add Coolant to the Radiator
1. You can remove the radiator pressure cap when the cooling system,
including the radiator pressure cap and upper radiator hose, is
no longer
hot. Turn the pressure cap slowly
to the left until it first stops. (Don't
press down while turning the pressure cap.)
If you hear a hiss, wait for that to stop. A hiss means there is still some
pressure left.
.. "
as you turn it.
Remove the
pressure cap.
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Downloaded from www.Manualslib.com manuals search engine 3. Fill the radiator
with the proper
mix, up to the
base
of the filler
1
neck.
4. Then fill the coolant recovery
tank
to the ADD
mark.
5. Put the cap back
on the coolant
recovery tank,
but leave the
radiator pressure cap off.
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Downloaded from www.Manualslib.com manuals search engine 1
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 filler neck may be lower. If the
level is lower, add more of the proper mix through the filler neck unt\
il
the level reaches the base of the filler neck.
8. Then replace the
pressure cap. At
any time during
this procedure if
coolant begins to
flow out of the
filler neck,
reinstall the
pressure cap. Be
sure the arrows
on the pressure
cap line
up like
this.
Engine Fan Noise
This vehicle has a clutched engine cooling fan. When the clutc\
h is engaged, the fan spins faster to provide more air to cool the engine. \
In most every day
driving conditions the clutch
is not engaged. This improves fuel economy
and reduces fan noise. Under heavy vehicle loading, trailer tow\
ing and/or
high outside temperatures, the fan speed increases when
the clutch engages.
So you may hear an increase in fan noise. This is normal and should not be
mistaken
as the transmission slipping or making extra shifts. It is merely \
the
cooling system functioning properly. The fan will slow down when
additional cooling is not required and
the clutch disengages.
You may also hear this fan noise when you start the engine. It will go away
as the fan clutch disengages.
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Downloaded from www.Manualslib.com manuals search engine Four-wheel Drive Remote Oil Filter
If your vehicle has four-wheel drive, you will have a remote oil filter. There
is a special access door in the steering linkage shield assembly located under
the radiator support. Twist the screw to lock or unlock the door.
Engine Coolant Heater
An engine coolant heater can be a big help if you have to park outside in
very cold weather,
0°F (-18 “C) or colder. If your vehicle has this option,
see “Engine Coolant Heater” in
the Index.
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.
Air Cleaner
To remove the rectangular air cleaner filter for the 4.3L (VIN W) engine,
open both clamps and push the rear
of the air cleaner back toward the rear
of the engine compartment to change the filter.
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Downloaded from www.Manualslib.com manuals search engine How to Check Lubricant
,:
If the level is below
the bottom
of the filler
plug hole, you’ll need
to add some lubricant.
If the differential
is at operating temperature (warm), add enough lubricant
to raise the level to the bottom of the filler plug hole.
If the differential is cold, add enough lubricant to raise the le\
vel to 1/2 inch
(12 mm) below 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.
Engine 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.
The proper coolant
for your vehicle will:
0 Give freezing protection down to -34°F (-37°C).
Give boiling protection up to 262°F (128°C).
0 Protect against rust and corrosion.
Help keep the proper engine temperature.
Let the warning lights and gages work as they should.
What to Use
Use a mixture of one-half clean water (preferably distilled) and one-half
antifreeze that meets “GM Specification 6038-M,” which won’t damage
aluminum parts.
You can also use a recycled coolant conforming to “GM
Specification 6038-M.
Use GM Coolant Supplement (Sealer) with a
complete coolant flush and refill. If
you use this mixture, you don’t need to
add anything else.
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Downloaded from www.Manualslib.com manuals search engine 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.
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.
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Downloaded from www.Manualslib.com manuals search engine 3dding Coolant
k
To Check Coolant
When your engine is cold, the coolant level should be at ADD, or a little
higher. When your engine is warm, the level should be
UP to FULL HOT, Or
a little higher.
To Add Coolant
If you need more coolant, add the proper mix ut the coolant recovery tank.
Add coolant mix at the recovery tank, but be careful not to spill it.
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