1998 CHEVROLET S10 Owners Manual

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
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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. ..
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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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En,gfne Fan Noise If a Tire Goes Flat
You may also hear this fan noise when y0.u start the.
engine.. It, will 99 away as the fan clutch disengages.
If s unusual for a tire tc! “blow aut.” while. yau’re .driving,
espe-cially
if you ,maintain your fire.s- propedy. If air gOes
.out of a tire, ft’s much more likely to’ le,& out. slowly.
B.ut if you shoul-d ever have. a “blowout,” here are a few
tips about what to. expect and what to do:
If a front .ti..te fails, -the flat tire- will create a drag that
pulls the vehicle toward that side, Take your foot off
the accelerator :pe&al and .grip the steering wheel‘ firmly.
.Steer;to maintain lane position, and tkn geritly-brake to
a stop well out ..of the traffic lane.
5-2.1
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