2003 EB 4X4 with 160K Miles
Other then one blown out plug during warranty and another out of warranty, there has only been one major thing which was the heater core blew out last year and they have to tear out the whole dash to replace it. 12 hours labor to replace a $200 part!
I have now replaced all the COPs and have decided to change them ever every 50K miles along with the plugs. It is a pain to be 150 miles from home and have to be towed or limp home due to a misfiring cylinder. The Expy is always outside and in the Mountains every weekend. Since I have to drive through a creek to get to the cabin, I think I will never ever get 100K out of plug/COP anyway.
Both blown out plugs happened on the way home from the cabin. All but one of the bad COPs happened on the way home from the cabin. When the number 1 cylinder COP started misfiring, we were coming home from our condo on Hilton Head Island, must be the exception to whatever Rule I'm dealing with! And now that I am typing this, every single one has happened on the way home from somewhere, never while leaving or driving around near the house where tools and spare parts are!