Truck started doing this about a week ago, only does it sometimes. It does it when its in gear at a stop, otherwise driving around its not there. And only does it sometimes (not at every stop) I can hear it super loud under the truck, but when I pop the hood its hard to hear. Ive added a youtube link of the truck ticking at a stop light. Any ideas?? A bad wrist pin? loose bolt? Bad bearing?
http://youtu.be/hktt7ckgCQ8