Ford 2003 Mustang Workshop Manual page 1288

43. NOTE: Use compressed air to remove any foreign material from the spark plug well before
removing the spark plugs (12405).
NOTE: One spark plug is shown; others are similar.
Remove the spark plugs.
44. NOTE: Rotate the camshaft to the base circle of the camshaft lobe before removing followers.
Keep roller followers in order when removing.
Use special tool to compress the valve springs (6513) and remove the 16 camshaft roller
followers.
Rotate the camshaft and the crankshaft as necessary.
45. Remove the crankshaft pulley bolt.
46. Using the special tool, remove the crankshaft pulley.