2011 Duramax - new DEF Tank
Have had the code, P205B, come and go the past 2 weeks. Have a little over 48,000 miles on the truck. One time the truck remote start did not work (truck started and then stopped) - CEL light was on w...
Forum Discussion
Get the new tank, especially if it's under warranty. I believe the DEF tank is 5 yr/100,000 mile warranty. Read up on different diesel forums and you will se the only way the fix the codes is to put a new tank in, as the sensor is inside the take and cannot be fixed. That should fix the issues you are having.
