I have no idea what sort of core they provided. A large, folded fin plate style evaporator like this was common for cars that size:


https://www.rockauto.com/en/moreinfo.php?pk=814196&cc=1445060&jsn=917

15 psi 134a is around 15f. If your lines in & out of the evaporator are cold enough to freeze atmospheric moisture, then the core is that cold as well. If you are blowing air over an evaporator that is that cold it will be very cold on the discharge side. Well, at least until the core freezes so...

Your evaporator core is cold as hell. Your vent air is not going over it.

A cold accumulator with 74f discharge air indicates some blend air entry.

Book vs underhood sticker - sticker wins. Jeep tends to change systems mid year.

Your high side is in line with a proper charge with that ambient.

A restricted OT could certainly cause problems, but this could be re-heating as well. Is the accumulator cold?

The system capacity for that GW is 26 ounces of refrigerant, and 7.5 ounces of PAG 100 oil. You are undercharged on refrigerant, and at an unknown oil charge level. When you replace a compressor, drain the NEW one. It is unlikely that there was a full 7.5 ounces in the replacement compressor. Testin...

Hopefully you still have a Bridgeport within reach. There are plenty of compressors out there to choose from. Pay attention to the drive ratio for the diesel. The average compressor can spin to 6,000 rpm, some are ok at 7500 on the rev limiter. Under driving the compressor from an engine that spends...

Lavarider: Those pressures at 1500 look very good for that system. 30psi on the R12 system is about perfect, 35f suction. The TXV is fine. You probably have a reheating issue, or air is bypassing the evaporator core. Sometimes when you replace an evaporator core, a foam seal has disintegrated to the...

Compressor capacity on automotive compressors is generally someplace below 4 tons. A Sanden 7H15 is able to make 2.13 tons at maximum capacity. The GM V7 compressor makes it to 3.98 tons capacity maximum. Running two compressors with separate systems will work. The larger TM31 compressors used on am...

Side can taps fix all of that...

Glad you got it fixed