I had installed a PacBrake about 3 mo. ago and all was fine. I was happy with the retarding power pulling my 5th wheel. I had washed the truck (thought I was careful in not getting the relay wet) and this weekend my PacBrake would not activate. The Butterfly was ok, it just would'nt come on. Called tech support toll free, they advised how to clean the valve in the solenoid and it worked like a charm. I guess the valve was not opening all the way before as now it slides the rear weels in 2nd gear in the dirt and threw my dog Smoke into the floorboard. I have much more retarding than I ever had before. I am happy.




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