Coolant in oil and diesel in degas. Please Help
This is a e99 F250 7.3. I just got through replacing the number 2 injector and it started blowing coolant out the degas bottle and had diesel in the coolant. It is also blowing out white smoke. So I was like I must have cracked an injector cup when I installed the injector. So I drained the oil and took off the oil filter before I did the injector cup install so the oil wouldn't get contaminated. The oil change had about 50 miles on it. Then I dissemble and removed the injector cup with a blind hole bearing puller and reinstalled the new cup with an old injector with 262 sealant from ford. I put it back together and let it idle for about 3 minutes and it was still blowing coolant. So I thought I had another cracked cup. I tore it apart and started blowing compressed air into all of the glow blow holes to find out which cup was leaking. When I got to cylinder number seven the degas bottle started bubbling and over flowed. So I thought that it had to be the cracked cup. I replaced this injector about three months ago. When I went to try it again I noticed that the cylinder had filled with coolant after I had done that. Then I went to drain the oil this time it had coolant in it. It didn't have any in it before this and it had to get in there from idling for 3 minutes or for setting a week. I was wondering if an cracked injector cup could leak coolant down to the oil pan I also now it could be the head gasket. Any help would be greatly appreciated.