2000 7.3 with coolant in fuel
I have a 2000 F250 with the 7.3 Powestroke. It has 193,000 miles on it. It runs perfectly. It has a lot of power. It idles smooth and it doesn't smoke. However when I kill it and let it set for an hour or more it puts coolant into the fuel system. I can open the water separator valve and it drains out antifreeze for the first 5 seconds or so. Also when I start it, it runs for a few seconds until the coolant infested diesel hits the injectors, then it loads up and dies. I can bleed the antifreeze out of the fuel and it will crank, or I can keep cranking on the starter for a while, it will blow a ton of white smoke and fianlly crank, run horrible, then clear up and run perfectly until I kill it and let it set again. My best guess is a crack in a head. I have tried running it without the cap on the coolant resevoir to keep the coolant system from pressuring up when I kill it and this doesnt change anything. Any suggstions? if it is a head how do I determine which one? Anyone had anything like this happen? Thanks.