Author Topic: Cat C9s regen system  (Read 842 times)

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Offline Myourich

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Cat C9s regen system
« on: January 25, 2019, 07:42:30 AM »
I have been dealing with the regen system not igniting when running down the road. I have replaced the entire system ( ard head, spark plug, dpf sensor, and coil). I have had it at the cat dealer 5 times in the last 6 months. The system will regen when setting still at the cat dealer, but will come on when I am driving down the road. Has anyone had the same problem?

Offline David.e.atherton

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Re: Cat C9s regen system
« Reply #1 on: January 25, 2019, 10:39:01 PM »
Myourich, maybe I can help you with answer to your question. One of the most common
problems on your regeneration system is the ARD Head and is very expensive to replace.
This ARD Head is very prone to heat cracking that gives a failed regen to light. There is several areas of problems including turbocharger replacement very often. There really is not a
very good sound answer that I can give you other than repairs will occur often.
Ask Dave, Dave Atherton Retired Cat Mechanic