Oldsmobile 2001 Silhouette Owner's Manual page 321

Housing
3. After the engine cools, open the coolant air
bleed valves.
There are two bleed valves. One is located on the
thermostat housing. The other is located on the
thermostat bypass tube.
5-18
Bypass Tube
4. Fill the radiator with the proper DEX
5. Rinse or wipe any spilled coolant from the engine
coolant mixture, up to the base of the filler neck.
See "Engine Coolant" in the Index for more
information about the proper coolant mixture.
If you see a stream of coolant coming from an air
bleed valve, close the valve. Otherwise, close the
valves after the radiator is filled.
and the compartment.
R
-
COOL