Just an update, i cut the light green wire at the compressor and at the switch inside and ran a jumper lead to test it and it worked good so i ran a new wire and it seems to be working ok ! That light green wire goes into the big harness and i was not gonna track it down under the dash ! Seems...
My 97 k3500 started holding the front brakes like the hydraboost wasen't working right but wouldn't it hold all 4 instead of the fronts ? It has hard steering at times but it has a new ps pump so i think it needs a hyrdaboost ?