Chevrolet VENTURE 2004 Owner's Manual page 398

6. Start the engine and let it run until you can feel the
upper radiator hose getting hot. Watch out for the
engine cooling fans.
7. By this time, the coolant level inside the radiator
filler neck may be lower. If the level is lower, add
more of the proper DEX-COOL
through the filler neck until the level reaches
the base of the filler neck.
5-36
®
coolant mixture
8. Then replace the pressure cap. At any time during
this procedure if coolant begins to flow out of the filler
neck, reinstall the pressure cap. Be sure the arrows
on the pressure cap line up with the vent tube.