Ford 2003 Mustang Workshop Manual page 1253

39. NOTE: Use compressed air to remove any foreign material from the spark plug well before
removing the spark plugs.
NOTE: One spark plug shown, others are similar.
Remove the spark plugs.
40. Install the special tool between the valve spring coils to prevent valve stem seal damage.
41. NOTE: Rotate the camshaft to see the base circle of the camshaft's lobe before removing the
followers. Keep roller followers in order when removing.
Use the special tool to compress the valve springs and remove the 16 camshaft roller followers.
Rotate the camshaft and crankshaft as necessary.
42. Remove the crankshaft pulley bolt.