2003 Oldsmobile Bravada Owner's Manual - Page 289
2003 Oldsmobile Bravada Manual
Page 289 highlights
How to Add Coolant to the Radiator 2. Then keep turning the pressure cap. 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 pressure cap slowly counterclockwise about one full turn. If you hear a hiss, wait for that to stop. A hiss means there is still some pressure left. 5-30
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How
to Add Coolant to
the
Radiator
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
about one full turn.
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. Remove
the
pressure cap.
5-30