Surging during idle...

Always suspected that engine was gay

 

I had the same problem, its the fuel quantity control valve

Part # A0000900069
Its $711.49 as of 3-11-19

And about 2.5 hours of labor cost/time.

 

Steelhorse did yours do that on initial startup as well or after the truck was warmed up?
Nevermind, I checked the part and It looks like its for a dd13 or dd15. I have series 60

 

Are you still experiencing this issue or it was fixed?

 

Original poster seems to have fixed the issue with a throttle control valve. My 2011 columbia with the same motor 14l series 60 has a lopey idle after warm up. new injector orings and cups and no air on oem side of fuel system.

 

It's hard to diagnose a issue like yours i actually read your entire thread due to the fact that it happens when its warm. You will really need someone with experience to go over everything with a laptop and start chasing potential issues on the mechanical side of components.

 

Mine is fixed, on a DD15

 

How did u fix the problem? I'm having the exact issue tried 3 mechanics including freightliner w to no avail.

 

The red cummins does exist but not certain in later years.

If I had to guess it will be a Detriot of some kind.