1997 Pontiac Firebird Owner's Manual - Page 228
1997 Pontiac Firebird Manual
Page 228 highlights
1. You can remove the radiator pressure cap when the 2. Then keep turning the pressure cap, but now push cooling system, including the radiator pressure cap and upper radiator hose, no longer hot.Turn the is pressure cap slowly counterclockwiseuntil it first stops. (Don't press down while turning the pressure cap .) If you hear a hiss, wait for that to stop. A hiss means there is still some pressure left. down as you turn it. Remove the pressure cap. You can be burned ifyou spill coolant on hot engine parts. Coolant contains ethylene glycol, and it will burn if the engine parts are hot enough. Don'tspill coolant on a hot engine. 5-23
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 |
 |
1.
You
can
remove
the
radiator pressure
cap
when the
cooling
system,
including
the
radiator
pressure
cap
and
upper
radiator
hose,
is
no longer
hot. Turn the
pressure cap slowly
counterclockwise until it first
stops.
(Don’t
press
down
while
turning
the
pressure
cap
.)
If
you hear
a
hiss, wait for that
to
stop.
A
hiss
means
there
is
still
some
pressure
left.
2.
Then
keep
turning
the
pressure
cap, but now push
down
as
you turn it. Remove
the
pressure
cap.
You
can be
burned
if
you
spill
coolant
on
hot
engine
parts.
Coolant
contains
ethylene
glycol,
and it will
burn
if
the
engine
parts
are
hot
enough.
Don’t
spill
coolant
on
a
hot
engine.
5-23