My 2002 Mustang GT 4.6L was blowing and going, had great cold air coming home from work. A couple of hours later, on my way to the grocery store, I noticed a lot of hot air blasting through the vents. When it’s 103 degrees outside in San Antonio, you tend to notice these things quick. How can my AC go out this fast? So I looked at the AC compressor, and the clutch was not engaged. I took this forum’s advice, and went down the checklist: * Fuses 1.24, F2.2, F2.23 and F2.24. The v-meter shows them at 33 ohms or so. Check. * Put a jumper wire on the low-pressure switch. No response. Hmm. * Bought a NEW low-pressure switch. No response. * Put a jumper wire on the new switch. Still no response. Hmm. * Unplugged the wire going to the AC clutch, and measured 13.8 volts coming from the CCRM. Check. * Turned around and measured the ohms of the wire going into the AC clutch. Checks out OK. Hmm. Now what? Would appreciate any help.