Download Print this page

GMC 1998 Sonoma Owner's Manual page 230

Advertisement

How to Add Coolant to the Radiator
2. Then keep turning the pressure cap, but now push
down
a s
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

Advertisement

loading