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SERVICE INFORMATION
GENERAL
Removing the radiator
cap while
the
engine is
hot
can
Always let
the
and
radiator
cool
down
before
NOTICE
COOLING SYSTEM
Using coolant
with
silicate inhibitors
may
cause prem8ture
wear
of
watsr
pump seals or blockage of radiator passage.
Using
rap warer
may cause engine damage.
•
If
any coolant gets
in
your eyes,
rinse
them with water and consult a doctor
immediately.
•
If
any coolant is swallowed, induce vomiting, gargle and consult
a
physician immediately.
•
If any coolant gets on your skin or ctothes,
rinse thoroughly
with
plenty
of water.
•
Add coolant
to
the system at
the reserve tank. Do
not
remove the
radiator cap except
to refill
or
drain
the system.
•
All cooling system service can
be done with the
engine in
the frame.
•
Avoid spilling
coolant on
painted
surfaces.
•
After
servicing
the
system, check
for leaks with
a cooling system
tester.
•
Refer to
22-21
for
engine coolant
temperature
sensor
information.
SPECIFICATIONS
ITEM
Standard coolant concentration
I
I
TROUBLESHOOTING
Eng ine temper ature
t
oo
high
•
Thermostat
stuck closed
•
Faulty radiator
cap
•
Insufficient
coolant
•
Passage blocked
in radiator,
hoses
o
r
water jacket
•
Air in system
•
Faulty
cooling fan motor
•
Faulty
water pump
•
Faulty temperature indicator drive circuit
(page
22-171
•
Faulty fan motor
drive circuit (page 22-17)
Cool ant
leaks
•
Faulty water pump mechanical seal
•
Deteriorated
O-rings
•
Faulty radiator
cap
•
Damaged or deteriorated
cylinder head
gasket
•
loose
hose connection or clamp
•
Damaged
or
deteriorated
hoses
an
glycol
antifreeze
containing
6-3
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