2003 BUICK PARK AVENUE clock

2. Then keep turning the pressure cap, but now push
down as you turn it. Remove the pressure cap.
3. Remove the 3800 Series II V6 engine cover shield
to access the bleed valve.3.1. Clean the area around the engine oil ®ll tube
and cap before removing. Twist the oil ®ll
tube, with cap attached, counterclockwise
and remove it.
3.2. If you have the supercharged engine,
remove the nut in the center of the cover
shield.
3.3. Lift the engine cover shield at the front, slide
the catch tab out of the engine bracket and
remove the cover shield.
3.4. Put the oil ®ll tube, with cap attached, in the
valve cover oil ®ll hole until you're ready to
replace the cover shield.
5-35

4. After the engine cools,
open the coolant air
bleed valve. There
is one bleed valve. It is
located on the
thermostat housing.5. Fill the radiator with the proper DEX-COOLž
coolant mixture, up to the base of the ®ller
neck. SeeEngine Coolant on page 5-24for 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 ®lled.
6. Rinse or wipe any spilled coolant from the engine
and the compartment.
7. Replace the 3800 Series II V6 engine cover shield.
7.1. Remove the oil ®ll 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 ®ll tube and
cap by twisting clockwise.
7.4. If you have the supercharged engine, install
the nut in the center of the cover shield.
8. Then ®ll 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.
5-36

Headlamps
Each headlamp is attached by thumb screws.1. Remove the thumb screws by turning them
counterclockwise.
5-50

2. Pull the headlamp assembly away from the vehicle.
3. Remove the bulb
socket by turning it
one-quarter turn
counterclockwise, while
pressing it ®rmly.
Then pull it out. You
can use a tool to
remove the bulb socket
if you are unable to
do it by hand.4. Remove the wire connector from the bulb by lifting
the lock tab and pulling it away from the plastic base.
5. Replace the old bulb with a new bulb. Make sure
not to touch the new bulb element with your ®ngers,
as the oils on your hands will reduce bulb life.
6. Reverse Steps 1 through 4 to reassemble the
headlamp assembly.
When reassembling, make sure to align the pin at the
outboard edge of the headlamp assembly to the
plastic retainer at the outboard edge of the vehicle.
5-51

Front Turn Signal Lamps
1. Once the headlamp assembly has been removed,
reach down from the top of the vehicle, and while
pressing the lock tab on the socket, turn the socket
one-quarter turn counterclockwise and pull it out.
2. Remove the old bulb
by pulling it straight out
of the socket.
3. Replace the bulb and turn the bulb assembly back
into place.
Rear Turn Signal, Stoplamps and
Back-Up Lamps
5-52

6. Pull the taillamp assembly away from the trunk lid.
The bulbs are located on the back side of the
assembly.7. Turn the bulb socket
one-quarter turn
counterclockwise and
pull it out. You can
use a tool to remove
the bulb socket if
you are unable to do it
by hand.
8. Once the socket has
been removed, pull the
bulb straight out to
remove it from
the socket.
5-55

9. Replace it with a new bulb.
10. Reverse Steps 1 through 8 to reinstall the taillamp
assembly.
Rear Quarter Panel Turn Signal and
Stoplamps
1. Open the trunk.
2. On either side of the rear of the trunk is a plastic
retainer that holds the cargo net and taillamp
assembly in place. Unhook the cargo net from the
cargo net retainer and remove the retainer by
turning it counterclockwise.
3. Remove the plastic
retaining screws on the
trunk's interior.
4. Pull back the trunk trim panel.5. Beneath the trim panel are three nuts that secure
the taillamp assembly. Remove the nuts only from
the side you want to access. The turn signal
and a stoplamp can now be accessed.
5-56

6. Pull the taillamp assembly away from the vehicle.
7. Remove the bulb
socket assembly by
turning the socket
one-quarter turn
counterclockwise and
pulling it out.8. Once the socket has
been removed, pull the
bulb straight out to
remove it from
the socket.
9. Replace it with a new bulb.
10. Reverse Steps 1 through 8 to reinstall the taillamp
assembly.
Replacement Bulbs
Lamp Bulb Number
High Beam Headlamp 9005
Low Beam Headlamp 9006
Parking/Turn, Front 3057
Back-Up 3057
Tail/Turn 194
Tail/Stop 3057
For any bulb not listed here contact your dealer.
5-57