1998 Oldsmobile Achieva Owner's Manual - Page 210
1998 Oldsmobile Achieva Manual
Page 210 highlights
1. You can remove the coolant surge tank pressure cap when the cooling system, includingthe coolant surge tank pressure cap upper radiator hose, is no and longer hot.Turn the pressurecap 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. 5-22
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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.
5-22