1997 Pontiac Trans Sport Owner's Manual - Page 308
1997 Pontiac Trans Sport Manual
Page 308 highlights
1 2. Then keep turning the pressure cap, but now push down as you turn it. Remove the pressure cap. 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 pressurecap slowly counterclockwise until it first stops. (Don't press down while turning the pressure cap.) If you hear a hiss, wait that to stop. A hiss means for there is still some pressure left. 5-19
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 |
 |
1
2.
Then
keep
turning
the
pressure
cap,
but
now
push
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
pressurecap 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.
down
as
you
turn it. Remove
the
pressure
cap.
5-19