User Manual - Page 215

For 1997 OLDSMOBILE ACHIEVA.

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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
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