ISB 6.7 CM2150 problem

[Rawze]

(08-04-2025 )Stovedude Wrote:  Rawze, you were right on the money! I didn't loosen up the turbo, but I did remove the intake horn and there it was! The grid heater was completely blocked with soot! Got it all cleaned and vacuumed out and now it runs like a raped ape! Should I be worried about soot in the intercooler, or is that not usually a problem? (I realize that the EGR system was the culprit, but some soot was going through the intercooler also)

Thanks for the follow up. It will likely help others in the future as to what it could be.

If it got into the CAC then at some point, you might want to remove it and clean it all out with some diesel fuel, followed by several flushes of soapy water to make it safe again.