If you turn ON the A/C system and set the engine rpms at about 1500 for about 1/2 can you visually see a heavy frost or icing occurring on the A/C line(s) near the accumulator ?.
If you turn ON the A/C system and set the engine rpm’s at about 1500 for about 1/2 can you visually see a heavy frost or icing occurring on the A/C line(s) near the accumulator ?. If so, You may have a faulty LOW PRESSURE SWITCH that is NOT cycling the compressor and is causing the system to freeze up while your driving it. Once you slow down the system takes several minutes to DEFROST the ice before it resumes normal operation.If the AIR GAP for the A/C clutch was excessive you would hear a loud CLACK sound when it engaged everytime and it would be quite annoying. If it were to close the clutch would burn up and get severly burnt looking. What I do in cases like this is that I purchased extra long A/C hoses so that I could put the manifold set in the vehicle with me as I drove it sown the highway so I could watch the low and high side pressures and by watching the pressures tells you when the cluch is engaging and disengaging. What I think is happpening is tht the clutch is NOT diseng
