5-6
S,ERVICE AND MAINTENANCr;
intervals such
as
at
the time
of
engine oil changes when the engine
is
cold.
Follow steps 1,
8,
9, and io
of
the following section "Coolant
Replacement"
for radiator cap removal and coolant addition method.
If coolant has to be added more than four times a year either to the
recovery tank or to the radiator, see your dealer for a cooling system
check.
NOTICE:
If
the proper quality antifreeze
is
used, there
is
no need to add
extra inhibitors or additives
that
claim to improve the system. They may
be
harmful to the proper operation of the system.
COOLANT SYSTEM SERVICE
The cooling system should be serviced
at
the time/mileage specified in
Section A of the Maintenance Schedule folder as follows:
L Wa
sh
the radiator cap and filler neck with clean water. See step 1
of
"Coolant Replacement" to remove radiator cap.
2.
Check the coolant level
in
the radiator and have it tested for freeze
protection. Add ethylene glycol antifreeze, if needed, to maintain
the specified freeze protection.
3 : Have the cooling system and
radiator
cap tested for a proper
pressure capacity
of
15
psi (105 kPa).
If
a replacement cap
is
needed, use
an
AC-DeIco cap, or an equivalent cap, designed for
coolant recovery systems and specified for your model.
4.
Tighten all radiator and heater hose clamps and inspect all hoses.
Replace the hoses if they are swollen,
"checked," or otherwise
worn.
5. Clean
the front
of
the radiator core
and
air conditioning condenser
to remove dirt and other objects. Also clean the auxiliary engine
and/or
transmission oil cooler if the
car
has them.
COOLANT
REPLACEMENT
At the time/mileage specified in Section A
of
the Maintenance Schedule
folder, the cooling system should be flushed and refilled as follows:
I. Remove the radiator cap when the engine
is
cool:
• Turn
the
cap slowly to the left until it reaches a "stop." (Do not
press down while turning the cap.)
• Wait until the pressure
is
relieved (indicated by a hissing sound),
then press down on the cap and continue to turn it to the left.
2.
When 'the cap
is
removed, run the engine until the upper radiator
hose
is
hot (this shows
that
the thermostat
is
open
and
the coolant
is
flowing through the system).
3.
Stop the engine and open the radiator drain valve to drain the
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