2004 ISX w/ EGR Turbo fluctuates under load HELP please :)

does anyone know what ssmokey bear is talking about as far as the part he replaced by the thermostat housing? i have the same problem and is driving me crazy trying to figure it out and cummins is no help either. replaced egr about 6 mths ago for the same problem but it was throwing codes at that time. this time same symptoms but no codes and cummins does not want to warranty the valve since their are no codes. cannot figure out what part ssmokey bear is talking about because the actuator is on the turbo and controller is under the air compressor??

 

i did that and that did solve the hiccup problem but sometimes the egt would run higher than normal on a flat cruise so i thought you may have discovered the magic fix

 

i just visited their website. thanks, i've been looking for someplace like this.

 

Hey guys, I seem to be having the same problem with my truck too. I have deleted the EGR and have a new controller on the way. Just wondering if you have had any more problems si ce you made these posts?

 

Does anybody have an update on this I have an 870 ISX 2007 doing the same thing under load anything under 1,500 RPMs it starts hiccuping and blowing black smoke and you can hear the turbo going up and down and pitch I already have a new EGR valve no leaks all the manifold gaskets and turbo gasket were replaced