When the A/C quit on the trip, we drove with the system on vent. My wife complained that the air was hotter than what was outside the car. When we got back, I removed the glove box and checked the heat door operation on the heater. I speculated that A. The heat cable was out of adjustment, and not closing fully. B. The heat blend door was binding and not closing fully. C. The seal on the heat door to the case was damaged or missing, causing air to leak around the blend door. I did NOT want to remove all the HVAC ducts and cases to have to fix the door seal. Thankfully that was not the problem. I removed the glove box and could see the cable and door lever. When moving the cable I could see that the mounting for the cable was loose. This was causing the cable housing to move and not push the heat door fully shut. I used a LOOONG 1/4" flex extension to get back to the mounting and tighten it up. FIXED! and I only had to remove 6 screws in the glove box. The H-body gods have smiled on me.
I also replaced the A/C compressor for the third time. This one is real quiet and does not drag down the engine much when it engages. I think this compressor will be a keeper. I changed the lower pulley with one I got from Doug Thompson. 2 of my three problems fixed. Now the water leak.