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
Cummins has a fuel heater... Makes me wonder if the Duramax also has a fuel heater, if the relay for the heater stuck closed (why was it even activated), and if it is even capable of heating the fuel to that temperature. Or the fuel temp sensor flaked out briefly from a loose connection.
