ledroyjr

I will look at that and try to determine for cycling and line condition. Thanks for now Ledroyjr

2000 GMC Sierra 2500 4X4 6.0L air stopped working, changed out relay did not change situation, learned there was a cabin air filter changed it out was very dirty. The A/C started working and was cooling fairly well, then it started to blow hot air when you got in a slow down situation on the road about two weeks later. Replaced cabin air filter again about two months after the first change, was dirty but not as bad as the first change out but did not change the situation. I got a pro air charge unit and proceeded with their directions, showed that the unit was filled, I closed the doors to the rig so it would cycle and watched the gauge and it showed the meter on the a/c pro fluctuate between the white area and red area on the meter. It says on the a/c pro meter see tech if reading in the red. So if anyone can help me resolve where I am at on this I would appreciate the help. Thanks in advance. ledroyjr