Re: Oil in coolant after egr delete and oil cooler upgrade
This is a tell-tale sign of there being a leak in the oil cooler. Either one of the seals was installed incorrectly or there was a leak in the tubes right from the factory. If it is brand new and a Ford part, I'd suspect a pinched o-ring, so hopefully a simple R&R of the seals will fix it. If you used a Dorman, I would just toss it and get a Ford part. Oh....and make sure you get the seals/o-rings from Ford....like actually buy em from a dealer to be certain. LOTS of fakes out there and you will get leaks.
2004 Excursion 6.0
New HPOP/HPO system o-rings; Updated standpipes and dummy plugs
EGR delete; Rebuilt oil cooler; CCV collection mod
VR Black Diamond head gaskets and ARP studs
Oil and coolant bypass filters; Shell EC-1 coolant
Rebuilt turbo; 250 amp alt; 6000 watts of brain scrambling
One giant 240 pound English Mastiff riding shotgun!