hot diesel fuel
I got codes on my Duramax Diesel on my last trip and when I took it to the Chevy dealer they said my fuel overheated to 260 degrees . I have never heard of this . My truck got up to 235 on the engine ...
Forum Discussion
It's not that uncommon. It happens much easier with less diesel in your tank. If it's hot out on a long trip try to keep your tank half full or more. Or add abother auxillary fuel cooler if it occurs regularly. I think I remember it also happening when your stock lift pump gets tired and builds up more heat than it should.
