I have an 08 JK and just finished a 5.7 Hemi swap and am having issues with the AC. Both myself and my mechanic have checked everything we can think of and there is no rhyme or reason for it. The TIPM is new, the compressor is new and tested, the pressure switch is new and tested, coolant is perfect, we have Ohm'd all the wires and found no resistance....... When you turn on power the to the A/C it shows 12V for a millisecond then drops to 8V and stays. Anyone know of any reason why it would drop to 8V steady?