OK, I did a search on EO forums regarding this topic and the most recent posts were from a year and a half ago. Currently waiting in a hotel in Hagerstown MD with our 07 Acterra in the shop, diagnosis is at least a blown EGR cooler leak, waiting on final word. Scenario is like I read from the archives, multiple times in the shop with check engine/engine protect lights on, losing coolant, no obvious leaks, never ran hot, finally overheated. Was wondering if the lack of posts on this subject meant that, in general, the problem was addressed/solved at the manufacturer level, or did people quit asking about it online?