1997 Oldsmobile Achieva Owner's Manual - Page 215
1997 Oldsmobile Achieva Manual
Page 215 highlights
1. You can remove the coolant surge tank pressure cap when the cooling system, including coolant surge the tank pressure capand upper radiator hose,is no longer hot.Turn the pressure cap slowly about one-quarter turn to the left then stop. and 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 slowly, and remove it. 5-19
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 |
 |
1.
You
can remove the
coolant surge tank pressure
cap
when the
cooling
system,
including
the coolant surge
tank pressure
cap and upper radiator
hose,
is
no
longer
hot.
Turn
the
pressure
cap
slowly about
one-quarter
turn
to
the
left
and then stop.
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 slowly, and
remove it.
5-19