Originally Posted by falcor
Excessive exhaust heat eats turbo's up fast. I'd have Cummins check it to be safe.
NO. Honestly, read the cummins manual for your late model RV.
The "HOT EXHAUST" warning light is only there to tell the owner that the particulate filter is in a regeneration cycle, nothing more. It does not indicate a problem, it is only providing info.
Mine has gone on twice so far, in about 4500 miles of driving.
It stays on for a half hour or so at highway speeds.
It is fully detailed in the cummins manual that came with my 08 coach.