Originally Posted by wrongway01

Your oil cooler is no good. I use stock Ford oil coolers myself. After you install the new oil cooler add about 3 table spoons of Dawn dish washing soap and let it run awhile. Drain and repeat until all traces of oil are gone. And you might want to consider buying a new degas bottle because your old one will never clean up enough to be able to see the coolant level. Ford also sells a quart bottle of cast iron block cleaner that will get everything out of your coolant passages. Flushing is just a long and nasty process that you are going to have to do. Hope this helps

Originally Posted by BPofMD

If you don't replace the oil cooler you are wasting time and money! But.... it's YOUR time and $.......