Re: 2.7 CRD probs
I don't think that they even sold those in the US.... Where you located? Diesel engines like to run hot and nasty, so I'd figure that out. If it is running cooler than it should than that very well could cause incomplete combustion. On newer engines it isn't as much of a problem with high pressure direct injectors, but I always noticed on my older tractors from the 70's and 80's would smoke a lot before they were up to operating temp.
2006 Limited 5.7, SRT8 Manifolds, 3'' custom walker quietflow system, Crazy Jay Cam, Inertia Performance Heads, Airaid intake tube w/ KN drop in filter, srt8 pushrods, bilsteins, diablo