Maxxforce11......Got one in, one of our shops that isn't completing regens.Only dtc is idle shutdown timer.It will go into regen.I can watch temps go up in exhaust,leading me to believe the aftertreament system is working.While in regen engine light comes on and tach,oil psi and temp gauges drop out.Second later light goes out and gauges return to normal.This will go on for about 1/2 an hour.then will shut down with the idle shutdown timer dtc.No other dtc's. DPF was has been cleaned about 15,000 miles ago.Anyone see this before. TIA...

Hans from New York