Always, always, check the unloader side of the system first for this issue, if its not an unloader line leak its the unloader seals 95% of the time. Changing governors wont fix a recurring dryer purge, changing compressors only fixes the issue if the unloader seals are bad and its a whole lot cheaper and easier to replace the seals than the whole compressor. I think Ive fixed this same issue a hundred times maybe more, its a very common problem, I used to keep a squirt bottle with soapy water and an unloader rebuild kit on my toolbox when I worked at Howard Baer it was so common. Glad you got it fixed before you spent big money on a compressor.
I have a 2006 frightliner and when I reach my max pressure which is set at 140 it doesnt purge right it purges super super slow and when im driving it builds air to high and cant purge air fast enough so my pressure gets super high and I have to hold air hose inside truck on or keep hitting breaks plz help
Air dryer purging every 10-20 secs on my superliner
in Air Systems and Brakes
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I have a 2006 frightliner and when I reach my max pressure which is set at 140 it doesnt purge right it purges super super slow and when im driving it builds air to high and cant purge air fast enough so my pressure gets super high and I have to hold air hose inside truck on or keep hitting breaks plz help