1997 CHEVROLET CAVALIER radiator

Downloaded from www.Manualslib.com manuals search engine If the coolant inside the coolant surge tank is boiling,
don’t
do anything else until it cools down.
The coolant level should be at the
FULL COLD line.
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.
A CAUTION:
Heater and radiator hoses, and other engine
parts, can be very hot. Don’t touch them. If you
do, you can be burned,
Don’t run the engine if there
is a leak. If you run
the engine, it could lose all coolant, That could
cause an engine fire, and you could be burned.
Get any leak fixed before you drive the vehicle.
NOTICE:
Engine damage from running your engine
without coolant isn’t covered
by your warranty.
If there seems to
be no leak, with the engine on, check to
see if the electric engine fan is running.
If the engine is
overheating, the fan should be running.
If it isn’t, your
vehicle needs service.
5-1
. .

Downloaded from www.Manualslib.com manuals search engine A CAUTION:
Adding only plain water to your cooling system
can be dangerous. Plain water, or some other
liquid like alcohol, can boil before the proper
coolant mix
will. Your vehicle’s coolant warning
system is set for the proper coolant mix. With
plain water
or the wrong mix, your engine could
get too hot but you wouldn’t get the overheat
warning, Your engine could catch fire and you or
others could be burned. Use a
50/50 mix of clean
water and DEX-COOL@coolant.
NOTICE:
In cold weather, water can freeze and crack the
engine, radiator, heater core and other parts.
So
use the recommended coolant.
A CAUTION:
You can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol
and
it will burn if the engine parts are hot
enough. Don’t spill coolant on a hot engine.

Downloaded from www.Manualslib.com manuals search engine 1. You can remove the coolant surge tank pressure cap
when the cooling system, including the coolant surge
tank pressure cap
and upper radiator hose, is no
longer hot.
Turn the pressure cap slowly about
one-quarter turn to
the left and then stop.
If you hear a hiss, wait for that to stop. A hiss means
there is still some pressure left.
2. Then keep turning the
pressure cap slowly, and
remove it.
5-20

Downloaded from www.Manualslib.com manuals search engine 3. Then fill the coolant surge tank with the proper mix,
up to the FULL COLD mark.
r 1
4. With the coolant surge tank pressure cap off, start
the engine and let it run until you can feel the upper
radiator hose getting hot. Watch
out for the
engine fan.
By this time, the coolant level inside the coolant
surge tank may be lower.
If the level is lower, add
more of the proper mix to the coolant surge tank
until the level reaches the FULL COLD mark.
5-21
. ,.

Downloaded from www.Manualslib.com manuals search engine How to Check
You do not need to check the fluid level unless you
suspect
a clutch problem. To check the fluid level, take
the cap
off. If the fluid reaches the step inside the
reservoir, the fluid level
is correct.
Engine Coolant
The cooling system in your vehicle is filled
with DEX-COOL@ engine coolant. This coolant
is designed to remain in your vehicle for
5 years or
150,000 miles (240 000 km), whichever occurs first,
if you add only DEX-COOL@ extended life 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.
A 50/50 mixture of water and DEX-COOL@ coolant will:
0 Give freezing protection down to -34°F (-37°C).
0 Give boiling protection up to 265 “F (129°C).
0 Protect against rust and corrosion.
0 Help keep the proper engine temperature.
Let the warning lights and gages work as
they should.
NOTICE:
I
When adding coolant, it is important that you
use only
DEX-COOL@ (silicate-free) coolant.
If coolant other than
DEX-COOL’ is added
to the system, premature engine, heater core or
radiator corrosion may result. In addition, the
engine coolant will require change sooner
-- at
30,000 miles (50 000 km) or 24 months, whichever
occurs
first. Damage caused by the use of coolant
other than
DEX-COOL@ is not covered by your
new vehicle warranty.

Downloaded from www.Manualslib.com manuals search engine What to Use
Use a mixture of one-half clean water (preferably
distilled) and one-half
DEX-COOL@ coolant which
won’t damage aluminum
parts. Use GM Engine
Coolant If you use this mixture, you don’t need to add
anything else.
Adding only plain water
to your cooling system
can be dangerous. Plain water, or some other
liquid like alcohol, can boil before the proper
coolant mix will. Your vehicle’s coolant warning
system is set for the proper coolant mix. With
plain water or the wrong mix, your engine could
get too hot but you wouldn’t get the overheat
warning. Your engine could catch fire and you
or
others could be burned. Use a 50/50 mix of clean
water and
DEX-COOL@ coolant.
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.
[f you have to add coolant more than four times a year,
lave 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.

Downloaded from www.Manualslib.com manuals search engine Checking Coolant
The surge tank is located on the passenger’s side of the
engine compartment.
’ A CAUTIO--:
firning the surge tank bl-ssure cap when the
engine and radiator are hot can allow steam and
scalding liquids to blow out and burn you badly.
Never turn the surge tank pressure cap
-- even a
little
-- when the engine and radiator are hot.
When your engine is cold, the coolant level should be at
the FULL COLD mark.
1
If the low coolant light
comes on,
it means you’re
low on engine coolant.

Downloaded from www.Manualslib.com manuals search engine Adding Coolant
If you need more coolant, add the proper DEX-COOL@
coolant mixture at the surge tank, but only when the
engine
is cool.
~~
A CAUTION:
You can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol,
and it will burn
if the engine parts are hot
enough. Don’t spill coolant
on a hot engine.
When replacing the pressure cap, make sure it is tight.
Surge Tank Pressure Cap
NOTICE:
Your surge tank 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.
When you replace your surge tank pressure cap,
a
GM cap is recommended.
Thermostat
Engine coolant temperature is controlled by a thermostat
in the engine coolant system. The thermostat stops the
flow of coolant through the radiator until the coolant
reaches a preset temperature.
When you replace your thermostat, an
AC@ thermostat
is recommended.