Air Dryer Purging Air Every 15 Sec

[Bengy88]

(09-23-2023 )JHeavy_Hauler Wrote:  I am having similar issuse on a coronado!
When at idle it goes off every 30 sec. When excelerating, it increases to 10 sec. Also when the purge valve cycles, for about 3-5 sec it sounds like it is "farting",(best way to describe

First thing to check if you have a dd platform engine is pull your discharge hose off the compressor, it can be a complete bitch depending on the year, then take every section off between your compressor and dryer. I bet at least one line and a couple couplings is carbon packed. These trucks/engines are horrible about this shi#t.