Problem with my Superduty.
2011 Ford F-350 dually. 67k miles bought new. When I get in truck and go somewhere the "service engine indicator " is on. And stays on. Next time stays off. Dealership says fault code P204B Ran poi...
Forum Discussion
kydale wrote:
Doesn't seem to be using any more Def than normal. Truck runs like it always has. Service engine lite once on stays on till I shut engine off. Restart sometime it's on and sometimes not.
Could be some intermittent condition or an issue with a non essential part (when it's warm) like Kaytegs thing with the tank heater.
Have you cleared the code and see how long it stays off?
Just seat of the pants speaking if it's using def like it always does and is also regen ing like normal, it may be tough to diagnose until something actually fails without throwing parts at it.
If it were me, id consider riding it out until a physical symptom presents itself.
