Ford 2009 E-150 Owner's Manual page 54

Lights
Replacing side marker bulbs
1. Make sure the headlamp control is in the off position.
2. Remove the headlamp assembly. Refer to Replacing headlamp bulbs
in this section.
Aerodynamic
Sealed beam
3. Rotate the bulb socket counterclockwise and remove.
4. Carefully pull the bulb straight out of the socket.
To complete installation, follow the removal procedures in reverse order.
54
2009 Econoline (eco)
Owners Guide, 1st Printing
USA (fus)