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Message: [QUOTE="TexasJ, post: 1563856, member: 30660"] Update: I just went out to check if the ac compressor clutch was engaging as per Tiha's suggestion. Before I could even do that though, I realized that immediately upon starting the truck, that the fan wasn't blowing at all. The AC compressor clutch was turning initially, but then it stopped. I unplugged the ac compressor and plugged it back in, wiggled the wiring pigtail around, and it wouldn't turn on. I tried putting the AC on different settings, and tried different fan speed settings, still the blower wouldn't turn on. So then I wiggled the wiring pigtails around the blower motor and drier, and finally the compressor kicked on again. I don't know which wire did it, and I wasn't able to replicate the issue. So that left me even more confused than I already was. But since the ac compressor was staying on now, I decided to have my girlfriend rev it up to 2000 rpms and hold it like I initially planned. She held it there for a solid minute and a half, and the ac clutch stayed on the whole time with no issue. I also felt the tubes coming out of the evaporator doghouse, the upper tube and the lower tube, right where the emerge from the plastic. And from what I could tell they felt like they were pretty cold, and close to the same temperature. That said, when I felt that same tube closer to the orifice tube quick connect it was no colder than the ambient temp (aka it was warm). Not sure if any of this helps you guys to understand what's going on any better. Do you still think it's undercharged? [/QUOTE]