Air compressor problems

[RyanC]

If you are getting a big pressure release, start the truck and look/crawl underneath it is probably the safety pressure relief valve on your primary air tank opening. This opens at 140 to 150 psi so you don't over pressure the system. If that is where your air is coming from that's good because that's working properly.

But.... your compressor is never being told to shut off so it is constantly pumping air. It would most likely be the governor but start by disconnecting the lines to the governor and blowing them out with air. Take your desiccant filter off and look down into the housing and see if there is any sludge or debris build up in the bottom of housing.

Basically your doing a little more thorough visual inspection and blowing the lines out to make sure everything is open and clean before replacing the governor. Plugged supply lines and or ports will give you same results as a bad governor. Also if there's sludge in the bottom of desiccant housing it's in the governor also.