Pontiac 2005 Grand Prix Owner's Manual page 326

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.
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
6. Rinse or wipe any spilled coolant from the engine
and the compartment.
7. Replace the 3800 Series III V6 engine cover shield.
7.1. Remove the oil fill tube, with cap attached,
7.2. Insert the catch tab on the cover shield
7.3. Place the hole in the cover shield over the
8. Then fill the coolant recovery tank to the FULL
COLD mark.
9. Put the cap back on the coolant recovery tank, but
leave the radiator pressure cap off.
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from the valve cover.
under the bracket on the engine.
hole in the valve cover. Install oil fill tube and
cap by twisting clockwise.