Buick 2005 LeSabre Owner's Manual page 273

7. Replace the 3800 Series II V6 engine cover shield.
7.1. Remove the oil fill tube, with cap attached,
from the valve cover.
7.2. Insert the catch tab on the cover shield
under the bracket on the engine.
7.3. Place the hole in the cover shield over the
hole in the valve cover. Install oil fill tube and
cap by twisting clockwise.
7.4. If you have the supercharged engine, install
the nut in the center of the cover shield.
9. Put the cap back on the coolant recovery tank, but
leave the radiator pressure cap off.
8. Then fill the coolant
recovery tank to the
FULL COLD mark.
10. Start the engine and let it run until you can feel the
upper radiator hose getting hot. Watch out for the
engine cooling fans.
11. 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.
12. 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 arrow
on the pressure cap lines up properly.
®
coolant mixture
5-33