So I have a 2004 Dodge Durango 4.7. Recently the a/c stopped working. So first we replaced the a/c compressor and only had cold air in the rear a/c. So next we replaced the expansion valve with no luck. At that point the rear a/c has also stopped blowing cold air. So we replaced the condenser and drier/acummulator. At this point it seemed to not be taking a charge and turned out there was a bad o ring at the drier/acummulator so replaced and leak was fixed. However the a/c clutch is not engaging. We thought maybe the clutch went bad in this unit as well so we did a warranty exchange and installed the new one. And still clutch is not engaging. So when we test the wires on the clutch they both test as ground wires and aren't showing any power going to the clutch!?! Any ideas?? Thanks