Ford 2003 Mustang Workshop Manual page 1188

4. Remove the bolts and the eight ignition coils.
5. NOTE: Use compressed air to remove any foreign material from the spark plug wells before
removing the spark plugs.
Remove the spark plugs.
6. NOTE: Rotate the camshaft to the base circle of the camshaft lobe before removing the
followers. Keep the roller followers in order when removing.
Using the special tool, remove the 16 roller followers.
Rotate the crankshaft and camshaft as necessary.