In Reply to: Re: F150 clatter/new wrinkle posted by Bruce(OR) on December 06, 2018 at 01:36:35:
The tailpipe discharge was definitely not the usual water vapor. This was an oily mix, but hopefully that was from the clogged PCV.
I wish you were wrong about the timing chain components, but everything seems to be pointing that way. Getting set to order a kit.