hargrove
Well-Known Member
I went to help a friend with a 120G 87V3931 that would not build up air ,tank was full of oil so we replace compressor ,still no air .Put shop air in discharge line off compressor and air is comming exhaust port on brake valve ,so my guess is a new brake valve unless it can back feed from the park brake valve.Any input would be appreciated.
Thanks Dean
Thanks Dean