Intermittent CM2250 stalling only at idle

[zyNoT]

(05-30-2018 )Mr Hagg Wrote:  Do you have any codes. Most of the time air in fuel will give you a code of some sort. Interesting how pulling its ok but only when you stop up hill does it do it. Almost like only when at idle like maybe the gear pump is failing to maintain pressure. When they did the new fuel pump did that pump get replaced too? SOmetime they only put the high pressure pump on and not the gear pump on the end of the high pressure pump. EVEN at 500 bar it should run no problems we see many trucks around that at idle. Im thinkinking more along the lines of cam or crank sensor. Id recorded all info on insight and get it to do it. Save it and you can send it to either me, Rawze or Unilever's and we can look at it to see whats dropping out.

No codes at all. They didn’t change the lift/prime pump (electric pump). But yes the gear pump has been changed. And while rolling it keeps pressure without any issues, even going up a hill but if I was to stop on the hill, it would stall out. Pressure stays commanded at 750 bar, but drops and then engine shuts off .

Also wasn’t able to get it to stall out on a hill when both tanks are full.