A member identified the passenger side ticking noise as the exhaust manifold bolts burning-off (should be a recall) that was the problem. The repair suggestions were right on, especially removing the fender liner. A side note, the exhaust bolts are only torqued to 17 ft/lbs so they come out quite easily. O2 and EGR readings seem to have improved. Thank you all.
I would like to say thanks the for advice on my 2005 Dodge Ram 1500, hemi. on 2005 Dodge Ram 1500