ok, yesterday my drain water fuel separater light came on. i drain it once a month. i pulled over and drained it again. light keeps coming on. today i drove about 30 miles and my truck (08 F250 6.4 DPF Deleted) started missing very badly and was blowing a ton of white smoke. My Edge Insight stated that cylinders 1, 5, & 6 were mis-firing and that there was water in the fuel. got back to my company's shop (we have 2 certified diesel mechanics there full time) and let the mechanic look at it. he told me it sounds like the EGR system is letting water into my fuel system somehow and that we have a couple of new transport trucks in the shop now with that problem. we checked the coolant in my truck and it was completely gone. my truck is now being pulled by wrecker to the dealership. any thoughts?

 

Cracked egr cooler maybe?

 

If you have done a dpf delete do an egr delete and save your self some time and money.....or put on egr cooler and pray that it dosent happen again.....the big cummins isx has the same problem and now the ism..(isx is 15L and ism is 13L big truck) will blow out and blow oil all over everything...u got lucky i think..... i would just do it all my self if you can ....... unless u have a good warrenty..