Re: Aux pump running too much Was: What does this mean?
Reply #25 –
This would indicate that your Protection Valve has closed and the air system before this point is holding air as it should. If you are not aware this is a safety feature. Look on your air schematic and find your protection valve. If you have massive air problems beyond this valve it closes when the pressure gets to a set point (yours must be around 65#) so you will have some pressure to your brake side allowing you to get off the road in a safe manner.
With your air system holding like it is you now can start searching beyond your protection valve for air leaks.
Pamela & Mike