Originally Posted by electod
The EGR cooler on mine has gone out twice in the last year 2005 F250 in the last year it is in the shop right now for the second time the smoke starts out a little then it will come out until the engine warms up eventually it will go out completely then you will see blue smoke along with the white smoke I was told that once the EGR cooler goes the oil cooler will follow hope this helps
The oil cooler "can" become plugged due to the sand in the cooling system when the block was made which will cause the EGR cooler to get hot and fail (install a dieselsite coolant bypass filter - it's worth the money). I am assuming when your egr cooler failed the dealer didn't replace the oil cooler. I had to take my truck to another dealer in town to have it fixed right. If your truck is still at the dealer ask them to replace the oil cooler.