You are going to have to remove the cover. And have a look at what has broken. Something has obviously come adrift. Possibly the thrust plate. If the belt is loose will it come off the pulley and if so can you turn the pulley by hand with no pressure. Is it spinning freely?
Removal
CAUTION:DO NOT rotate camshafts with timing belt removed, or engine damage may result.
Disconnect negative battery cable. Remove air cleaner. Remove valve cover. Remove camshaft oil seal. See CAMSHAFT SEAL. Remove ignition coil, and set aside. Remove ignition coil bracket. Remove rocker arms. Remove camshaft thrust plate. Remove camshaft plug from rear of engine. Remove camshaft toward rear of engine. See CAMSHAFT table for camshaft specifications.
Installation
Thursday, January 1st, 2009 AT 4:35 PM