Coolant Replacement - Chevrolet El Camino 1983 Owner's Manual

COolant Replacement
CAunON: To
help
.vold
ihit
unger.cit
MinG '
bUl'Md, do not
I'eII)OiIe
u.:
rMlI.tor ClIp
while thIIlnglnio Inti
radiltor.,. 11111 hot
ScaldIng
fluid ....
IIttIIm
CIn
III-blown out
under
prentjre.
the
ClIp I ..
~n
Off
too
aoon.
. At
the
interv~s
specified
i~
iiJe' ,' M aintenanCe schedule
' a ider,
or,
, w ~ever
the
coolant
becomes
dirty, flush
and
refill the cooNng system
as
followS: "
1. When the engine
is
coo(
remove the uidiator cap:
• Turn
the cap
slowly to
the
left ...,til it reaches
a
', ~stop:. 00
not. press
dOWn while turning the
cap.
• Wait until any remaining pressure (indicatad
by
a hissing -sound) is
relieved,
then press
down
on
the
cap
and
continue turning it
to
the
left.
2.
Wtien tbe
cap
is , rEltllOved, run the engine
ur:rt!1 ihe
LlPPEir ractator
hose
is
hOt. {This shows that
the
thetmostat
Is
open:
and
tl)e
000lan.t
is
flowing
_ through the system.} _ : . , " " .
3._ Stop
the engine.
apen-
the
radiator
drain valve
to
drain. the coolant.
Drainage
may
be
speeded by
removing
the
drain
plugs int~ .engine
block,
'if
so'equipped. ' . .
4.
Close the drain valve:
nstall the
blOck drain plugs; if removed., Add water
until the
system
is filled and run the engine until the upper raciator hose is
hot
again.
5.
Repeat
stePs
3
and
4. 'several
timeS
until '!he" qrained liquid is 'nearly
oolOl"Iess.
6.
Drain the
system,
then
close
the ' radiator drain ' valve tight1y. Install
the
block
dram plugs,
if
removed. -
7. Disconnect all hoses
from
the coolant recovery tank.' Remove the recovery
. tank and pour , out, any fluid. Scrub and claar)
thE!
inside of the recovery
tank with
SoaP
and water. Flush it well with
dean
water,
then
drain il
Reinstall the _ recovery tank and hoses. _'
8.
Add enough water and
ethvJane
glycol
ant~reeze (~ing
OM
Specification 1625-M) .
to
provide the required coolill9, free. z ing and
corrosJon protection.
tJse . . . '
solution
tha~
1$
'8,t least
.sO'
percent a'ntifreeze
but 'no more' than 70 .peicent
antifreeze.
Fill.the radiator
to the
~e
of
the
filler neck
and
fill the ,coolant recovery-tank to
at
_ or above the "Full
Cold"
mark. Put tile_ recovery
tank
cap
back on. .
9 . .
R~n
the
~in~,
with
the
radietor
.cap,
rem, t ;>ved:
until t,",e uPPer racliatOl"
_ l:1ose Is hot.
With
the engine idling" add coolant
to
the ' radiator 'until it
-reaches the
bottom
of
the filler necik.' Install the radiator
cap.
making sure
the arrows on the cap l oe up with the overllow
tube
on the radiatOl" filler
neck.
tt
is
tM owner's respon' s ibllitY to: !
• Maintain cooling
system
freeze protection at
-37 6 C (-:-34 6 F)
_ t o
ensure
protection against coirosionand loss
01
cOolant from boiling.
(A 50(50
mixture
of
water
and ..
ethylene glycol antifreeze will provide freeze
proteCtion.
to
_ ' 3 7°C
or :-34°F,)
Xou
should do
this even 'if you
don't
expect
freezing '
temperatures.
Peric:x;li~ repl~t
of coolant Is needeo