Hey guys. First time on the expedition site.

Last week the wife was driving our 2007 el expedition when she heard a thump and the ac went warm. She drove it home and parked it. I looked at it and found that the belt had split in half, so that there was still belt spinning everything but the other half was wrapped around the fan. It tore the fan clutch wiring harness which had to be replaced. But I see no other damage. Now the ac clutch won't engage. Power at the fuse but none at compressor connector. Clutch spins freely so it isn't locked up. Also took a pressure reading on the ac low side and it was at 100. This spring It was at the 35 -40 range. Does anyone have pics of the pressure switch locations so I can check for power there? Any other ideas?

Thanks
Josh

 

a general rule of thumb is with the vehicle off, just testing static pressure in the ac system, both high and low side should be equal, and should roughly be the same as the ambient temperature. so if it is 75 degrees where the vehicle is parked, pressures should be 75, this can fluctuate by a few degrees depending on humidity. that being said, 100 psi seems high if your taking a static reading. if you want, take 12V straight to the compressor and see if the clutch cuts in. if it does, either the pressure switches or your climate controller is malfunctioning. that's my guess anyways

 

Does anyone have a wiring diagram for this system? I have a chitons manual but the wire colors don't seem to be matching.