I have a 2001 dodge ram 1500 that the system is full of freon but the compressor won't engage, we jumped the low and high pressure switches with no luck, checked fuse and relay both OK..

I have a 2001 dodge ram 1500 that the system is full of freon but the compressor wont engage, we jumped the low and high pressure switches with no luck, checked fuse and relay both ok..

Let's see... power from the relay... by-pass both pressure switches...
You didn't verify power is actually getting to the compressor clutch, but I'd guess that you may have a failed compressor clutch.

Thanks Captain Rich Changed the compressor with a used one Cheaper and faster than changing just the clutch with reman unit works great