1997 Chevrolet Tahoe Owner's Manual - Page 255
1997 Chevrolet Tahoe Manual
Page 255 highlights
How to Add Coolant to the Radiator 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 pressure cap 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. 5-18
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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 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.
2.
Then keep turning the pressure cap, but
now
push
down as you turn
it.
Remove the pressure cap.
5-18