So your saying its on 12 seconds, then off 12 seconds, then on 12
seconds, ..... . A total clutch cycle time of 24 seconds? What was
the temperature outside? The only standard test that specs clutch
cycle time is to (1) Place vehicle in park, (2) Place A/C in Max
cooling and fan modes (3) Hold engine RPM at 1,500 RPM, (4) Allow
system to stabilize with interior temp at 70-80=B0F. The times vary
widely depending on outside air temp.