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Been having problems ever since with my exhaust over heating.The above is the catalog of Cummins tool we often supply. Mine was all burnt up, wasnt doing regens and clogged up the filter. Meaning its going to have to be replaced by us every so many miles. The dealer told me that the aftertreatment injector is going to become a maintenance item.

Hopefully this will be a little bit of helpful information to pass on and help someone this will mess with the fault codes 29. What makes it hard is there is no real way to monitor the turbo or run an actual test on the turbo to see if its it operating correctly.Also another issue i posted on the DPF thread is that the aftertreatment injector there are issues with it where it will leak coolant around the injector and cause it to crystallize and cause the aftertreatment injector to malfunction and make it look like there is an issue with the Egr cooler or the egr valve. But needless to say had to replace the turbo and this cured the issue.

I also pulled the hump hoses off the air and found oil residue in the tubes and around the swivle neck. Just fyi had to replace a turbo on a 2008 isx and the issue was is would smoke for the first 100 miles of operation and after the truck got good and warm the issue would correct itself.But after some research I found out that there is an issue with the turbo gate valves in the turbos not opening all the way till after the truck gets good and warm. Hello Dk friends I see all good post on here about Erg issues and cooler issues and turbo issues.