just got back from the mechanic. he said he pumped it out, changed the filters, drove it and redrained the seperator and nothing other than diesel came out. but, driving it 2 miles home just now the "water in fuel" warning came on twice. he told me if it did just to drain the separator, which i can do.
but, is this an indication that there is still def in the system or that the sensor got wet with def and is now faulty? what pisses me off is that i offered/asked to pull the fuel pump relay and the owner of the shop emphatically told me not to do anything. then, i am sure they turned the key to put in neutral to pull it on the truck and that's when the def circulated.
any advice as to what i should do now is appreciated? be a hard ass and make them change the filters again at their cost this time? change them myself and not drive it til i do? is it already too late and damage is being done? it runs just like always and i'd heard that def contamination will be noticed right away and it will run bad. but, what if there is still some def in the bottom of the tank and that just keeps coming into the separator, hopefully not beyond?