In Reply to: sticky valve?/4.6 triton posted by lonestarjeff on November 29, 2018 at 16:18:53:
I did some research. I liked this one the best. Hit the link and do some reading yourself.
"started out a rattle like a lifter clicking. got louder and wen't to dealer for tear down of right valve cover. Mechanic came back with cam cover from rear of head and journals were worn and blue. Said I needed a new head, blamed wrong oil? After new head installed they heard a bottom end knock. The trust bearing was gone and crank was moving back and forth. The metal from cam dropped down and tore it up. New motor at $5700 for rebuilt long block. Told me the cam tensioner pads were worn out also. Since this happened i found out the oil pressure gauge is basically an idiot light as it moves to 40lb and stays there regardless of actual pressure. There was no way I could have known the pressure was down due to this gauge. It takes about 60 to 75K for this to happen. Ford would like this to go away offering no help whatsoever. I am hoping a class action will start but I might be too late. After six months the new motor started rattling at start up after sitting for a few days. It was the cam tensioners bleeding down and the chains rattled till pressure came up. The dealer said it was normal and showed me the door. I wen't down the street and bought a Ram with the Hemi and I am thrilled."
- Bob G., Grants Pass, OR, USA