Well it looks like this thread has been around for a long time, but im still glad I found it so I could post up my question. I have a 06 F350 5.4, and it has a loud ticking on I believe the drivers side, but could be both. Sometimes its there sometimes its there and loud. When I change the oil it is loudest until pressure builds up and it quiets down. Is this a cam phaser issue? Local dealer said it was and its very, very expensive to have them do it, hence the diy thread interest. Thanks