For the last whole year I would get this upon the second start of the day and others. No check engine light ever. Frustrated, I gradually replaced all the engine sensors but it would still do it. Had it scanned and was told everything worked. Replaced more anyway. Last month I took it in again to have scan and was told the O2 sensors were not heating up fast enough so I replaced the Bosch 2 upstream that had only 3 years and 20k miles on them. They were the problem! Now, no stalling! MPG from 8 at 0 elevation in Socal to 12mpg in 20 miles. I had overlooked the O2 sensors because they are supposed to last a lot longer. This post is a heads up if you have this problem.

 

These trucks simply don't like Bosch O2 sensors. NTK, or Denso only please.

 

Hi, OK, I did buy Denso this time.

 

Those should last a good, long, time.