6.0 EGR PO 404 Code
Well I bought a used 2004 F250 with the 6.0 from a dealer. I am still in the 30 day warranty plus I opted for the extended warranty from them. I had the truck for 1 week and i was experiencing a CEL then bad smoke and choking under 1800 RPM when hot. Would work fine when cold until it reached full temp. The code came up PO 404. I brought it back to the dealer and they said it was the EGR valve and Oil Cooler. They are going to replace it. I don't know too much yet about these 6.0 liter engines. But does that sound right? Are they doing the right thing?