Sorry I am getting back late. I had an issue once where the camshaft position sensor synchronizer was making that same noise you are describing. Get a stethoscope or a long screwdriver and listen to see if the sound is coming from the Camshaft Position (CMP) sensor synchronizer. If it is replace the synchronizer assembly. Good luck and keep us posted please.
Thursday, August 7th, 2014 AT 6:38 PM