问：压缩机，冷凝器，蓄能器，孔口变化后两侧的A/C压力均高

更换压缩机，冷凝器，蓄能器/干燥机，孔管和后膨胀阀后，机械师说低侧和高侧压力都太高了。它确实具有单独的控件的后交流。

He says the low is 80 and high is 375 and will go to 450. Granted it is 100 degrees here in Arizona. He swears the proper amount of oil and refrigerant is in there and thinks that the front evaporator must be plugged internally. It does blow some cool air from the front and cooler air from the rear AC. Any ideas?

Also before this the AC would blow slightly cool but was low on refrigerant and compressor was going bad. Also someone before we owned the car had worked on the AC it looks like as well as the rear AC since an access hole had been cut in the rear to get at the expansion valve it looks like.

My car has 187000 miles.
My car has an automatic transmission.