excessive moisture in egr valve

[williamsbuilding]

They can't seem to figure out why it will not regen passively, they can force it and it seems to perform as it should, gets to temp, etc. This will be third egr valve since rebuild, including one installed during rebuild. I can update on Monday what has or they would like to do next. They are waiting to attempt warranty coverage for at least the part, one year and 4 days. 4 days out of warranty. I have sent oil samples to lab every oil drop with good results each time. Most recent was just prior to going to the shop. I certainly do not have the knowledge as many here do, but have been reading post here for over a year trying to care for and understand this engine. Wish I had Insite software, but can't find cost effective way to own it. I've seen offers of $1200/years for licensing plus hardware. Sure appreciate all that others do here to help.