Cooling Syst E M - Toyota Celica Supra 1986 Service And Repair Manual

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C0·2
COOLING
SYSTEM
- Trouble1hooting,
Check and
Rl1)1
ace Engine
Coolant
rra~~~
....
Engine overheats
~
"'
-......:::
Ora
in Cock
TROUBLESHOOTING
Postibte
CIIUM
Rtmodv
,.,.
fan
btlts
lc.ose or missing
Adjun or
replace btlts
CH·4
Oi rt.
le~.,
01
insects on r.cliltor
Of
condenw
Oqn
r .ti~tor
or condenser
HCHH,
water pump,
\Mrmostat
houling,
R~
"
n necesury
radiator,
Mater,
cor•
plu9s or head
gasket
ltll<og<
Thermo1t1t
flulty
~
thtrmostlt
co.a
Ignition 1lm ing reterded
Set
t iming
IG·
IO
Fluid
coupling
faultY
Rtotact fluid coupl ing
C0 ·3
RidiltOf
hoM
plugged
or roned
Rtpl•c. hose
Water
pump
t.ul
ty
Repl.ce
w1ter
pump
C().3
Aadi.ator
plu~
or cep
t..,lty
Check
rtdiator
C0-7
II
C~l
indt
r
Mod or block
a
tcktd
0<
plutgtd
Repair as
MOeSSMV
~
/""
·~·
....
......
I
~
"""''
CHECK AND REPLACE ENGINE
COOLANT
1.
CHECK
COOLANT
LEVEL
The
coolant level
should
be
between
the
LOW
and
FULL
lines.
If
low check
for
leak• and
add
coolant up to
t
he
F ULL line
.
2.
CHECK
COOLANT QUALITY
There
should
not
be
any excessive deposits of rust
or
scales
around the radiator cap or
radiator
fi ller hole. and the
coolant should also
be
free
from
oil.
Replace the
coolant
If
excessively
d
irty.
3.
REPLACE
ENGINE
COOLANT
(a)
Drain the coolant
from
radiator
and
engine drain
cocks.
(Engine d rain is at right
rear
of
engine
block.)
(b) Close
the drain
cocks.
(c)
Fill
system with
coolant.
Use
a
good brand of ethylene-glycol base
coolant,
mixed
according
to the
maker's
directions.

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