1998 CHEVROLET S10 radiator

The coolant level should be at least up. to .the ADD .ma&.
A. C.oalant /Recovery Tank
B. .Radiator Pres,sure Cap
C, .EQgine:-Fm
If .$he coolant imide. the coolant te.coxe’ty tmk IS: boiling,
don’t do anythhg eke until it cads .down.
If it -isn’t, you may. have a leakin the radiator hoses,
heater hoses, radiator, water pump or sornewhere-else in
the coding system,
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Later and radiator hoses, and otherengine
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 a11 coolant. That could
cause
rn engine fire, ad you could be burned.
Get -any leak fixed before
you drive.. the- vehicle.
I NOTICE:
Engine damage from running .your engine
without coolant isn’t covered by your warranty.
If there s.eems to be no leak, start the engine again.
See if the
engine cooling fa ,speed Increases when
idle speed is doubled by -pushing. the -aceelerator pedal
down.
If it doesn’t, your vehicle needs servic.e. Turn
off he engine.
Haw to Add Coolant to the Coolant
Recovery Tank
I€ you haven’t found a problem yet, but the coolant level
isn’t at the ADT, mark, -add a. 50/5T) mixture of clean
water (preferably distilled) and DEX-COOL@ engine
coolant at the coolant recovery tank. (See “Engine
Coolant” in the Index €or mare infomation.)
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NOTICE:
h ciild. weather,. Walter can freeze -and crack the
enghe, radiator, heater core ;and other parts,
Use
the r~co~mende.dcool~~t and the proper
coolant mixture.
You can b-e burned i.f you spill coolant on hot
engine parts. Coolant contains- eihylene.glyco1
and it will burn if the.-engine-parts are hot-
enough. Don’t:spill coolant on a hot .engine, 1 I I
When the caolant in-the coolaiit re-covery tanlc is ‘at
the ADD mark, starryour vehicle.
If -the overhe-at warning continues, there’s @ne more.
thing you can try. YOU -can -addthe propier. coolant
mixture directly to the Iadiatm-, but. be sure.~e
cooling .. system is cool before-y.m do it.
I
5- 16
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How to Add Coolant to the Radiator
1. You can remove the radiator pressure. cap when
the
caoling system,. including the rachator pressure
cap
and upper radiator haw; is no longer hot. Turn
the
pressuice cap slowly counterclockwise until it
first stops. (Don't press down while turning the
pgessure cap.)
If you hem a hiss, wait for that .to stop. A .hiss means
there
is still s-ome pressme left.
2. Then keep turning.the.pressure cap,.but now push
down as
you turn it. Remove the pressure cap.
5-18
i
!
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3. Fill the radiator with the propet.DEX-COOL@
coolant mixture, up to the base of the filler neck.
(See “Engine Coolant” .in the Index for more.
-information about -the proper coolant mixture.)
4. Then fill the coolant recovery tank to the ADD mark.
$. Put the c-ap..back on the coolant recovery tank, but
leave- the radiator presswe cap off. ..
5-19
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6. Start the engine.and let it run until you can feel the
upper radiator hose gettirsg hot. Watch out for.the
engine cooling
fan.
8. Then replace the pressure cap, At any time during
this procedure if coolant begi;ins:to flow out:of :the
filler neck, reinstall the pressure cap. Be sure the
mows on the pressure cap line up like this. 7. By this time, the coolant level inside the radiator
filler
neck may be lower. E the level is lower, :add
more of.the proper DEX-COOL@ .coolant mixture
through the filler neckuntil the level reaches the
base of the .feller neck.
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When the differential is cola, aaa enough lubricant
raiise. the level to 1/2 inch
(1 2 .m) below the filler
plug hole.
When the differential is’ at operating. temperature.
(warn), add enough lubricmt to raise the level to the
b-ottom of the filler plug hole.
what to Use
Refer to the Maintenance Schedule. to determine what
kind
of lubricant to use. See “Recommended. Fluids and
Lubricant$’
in the Index.
Engine Coolw
The mob- -s stem in y,our-vehicle i.s filled with
DES-COUL engine coolant. This c:oolant.is devigned
to. remain in your vehicle for 5: years or 150,OO.Q miles
(240 000 km) whichever occurs, first, ifyou add,only
DEX-COOL’ extended lifecoolant.
The
following. expl.&s your cooling system and hcwto
add:cool&tt
whenit is low. If you have a problem with
engine overheating,
see “Engine. Overheating” .in
the Index.
-
(8
A 5-0/56mm~ure -or ner and DEX-COOL@
coolant will:
Give freezing protection down to- -34O.F (-37 O C>.
Give boiling protection up to 265°F (129°C).
Protect against rust and cormsim.
Help keep the proper engine temperature.
a Let the waning lights and gages, -work as
they ‘should.
I
NOTICE:
When addmg coolant, it-is important that you .me
on~y DEX-COOL@- (silicgtelfree) coolant.
.If c-oolant other than DEX-COOL isladded to the
system, premature engine, heater core .or
radiator corrosiron 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 UEX=COOL@ is not
covered by your new vehicle. warranty.
61-25
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Radiator Pressure Cap Thermostat
-NOTICE:
Your radiator cap is a 15 psi (105 kPa)
pressuredype cap and must be tightly installed ta
prevent coolant
loss and possible engine damage
frum overheating. Be sure the arrows
on the cap
line up
with the averflow tube on the radiator
filler neck.
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.
Power Steering Fluid
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