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Cadillac 1998 Eldorado - How to Add Coolant to the Coolant Surge Tank

Cadillac 1998 Eldorado
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How
to
Add
Coolant to the Coolant
Surge
Tank
If
you
haven’t found a problem yet, but the coolant level
isn’t at the proper level
(2.5
inches
(6.4
cm) below the
base
of
the fill neck), add
a
50/50
mixture of
clean
water
(preferably distilled)
and
DEX-COOL@
coolant
at
the coolant surge tank, but be sure the cooling system,
including the coolant surge tank pressure cap,
is
cool
before you do it. (See “Engine Coolant’‘ in
the
Index for
more information.)
A
CAUTION:
Steam and scalding liquids from a hot cooling
system can blow out and burn you badly. They
are under pressure, and if
you
turn the coolant
surge tank pressure cap
-0
even a little
--
they
can come out at high speed. Never turn the
cap when the cooling system, including the
coolant surge tank pressure cap, is hot. Wait
for the cooling system and coolant surge tank
pressure cap to cool
if
you ever have to turn
the pressure cap.
I
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 mixture will. Your vehicle’s coolant
warning system
is
set
for the proper coolant
mixture. With plain water or the wrong mixture,
your engine could get too hot but you wouldn’t
CAUTION: (Continued)
5-20

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