Buick 2003 Regal Owner's Manual page 241

4. After the engine cools,
open the coolant air
bleed valve.
The bleed valve is
located on the
thermostat housing.
5. Fill the radiator with the
proper DEX-COOL@
coolant mixture,
up to the base of the
filler neck. See
Engine Coolant on
page 5-24 for more
information about the
proper coolant mixture.
7. Rinse or wipe any spilled coolant from the engine
8. Replace the 3800 Series II V6 engine cover shield.
and the compartment.
8.1. Remove the oil fill tube, with cap attached,
from the valve cover.
8.2. Insert the catch tab on the cover shield
under the bracket on the engine.
8.3. Place the hole in the cover shield over the
hole in the valve cover. Install oil fill tube and
cap by twisting clockwise.
8.4. If you have the supercharged engine, install
the nut in the center of the cover shield.
6. If you see a stream of coolant coming from an air
bleed valve, close the valve. Otherwise, close the
valve after the radiator is filled.
5-36