Internal Compressor valve vs thermostatic expansion valve causing no refrigerant to take up in air conditioner?

I had two different technicians come out and the first one was newer. He said the problems seems to be with the internal compressor valve because here are the gauge readings: discharge pressure is 225 psi, suction scale decreases down to 15 & the compressor shuts down. When pressures equalize, compressor starts again and it keeps cycling. He tried to put refrigerant in and the system wouldn’t take. The 2nd technician said it’s the thermostatic expansion valve that can prevent the refrigerant from being taken into the compressor/system. Which way do you think it is? Would the readings be any different if it was the expansion valve vs internal compressor valve?
The second technician did say there was no freon or very low. I know both said the valves where they add the freon are leaking so those need to be replaced.
If it was just a leak and the valves were good, then there shouldn’t be a problem with adding refrigerant, right?
By valves, I meant the TXV and internal compressor valve. I am going to have a third opinion on this since the 2nd technician seems like he’s right, but he’s charging me 1100+ to replace all of my freon, replace TXV valve and schrader valves, and clean line drier (something like that). I just want to make sure that’s the cause before I spend so much.

The A/C in our Chrysler Town & Country has suddenly stopped blowing cold. The compressor is working as the pressure looks good, but no cold air from the front or rear units. My guess is that the expansion valve has blocked and needs to be replaced along with the drier. Any directions on how to get to the expansion valve would be appreciated.

I moved my mobile home and the guys who were working on it cut the lines and let all the freon out and did not seal the lines. It sat for a few months and we hired a guy to come and solder (or whatever) the lines back together and recharge with R-22 freon. I was already told by 2 other guys that I would need a dryer. This guy has been doing it 20 years but this was a side job on a weekend. Is it possible that he just didn’t have access to a drier and wanted to make the money so he took the chance? Now he is trying to sell me a new outside central a/c unit! After about a month a wire came loose that goes to the blower fan in house and I was home and realized that the outdoor unit was running with no fan pushing it. There was frost all over the A-coil and I waited until it was melted and turned the air on and it worked fine for a week. THEN, I notice that it is not working well at all! It is not freezing up or nothing, just not pushing cold air all the time. And if I stand outside and listen to the unit, it sounds fine but every once in a while (frequent especially hottest part of day) it hisses and while doing this the outdoor fan sounds as if it is lacking juice and "bogs" out for a few seconds and then quits. After it started doing this, I went ahead and left it running today which was really hot and muggy out and when I walked in the house there was a very substantial temp difference! The thermostat read 79 like it usually does when it is that hot. By the way the thermostat is old and takes batteries, I have replaced them and pushed the reset button on it. It never has been very good. Could the thermostat be possibly telling that compressor to turn off and on real quick as in like a short or something? Also, just because the fan outside is running, is the compressor supposed to be running or does the compressor go off first (as in when it is working properly) and shortly after the fan (outside fan)? I am thinking this is more of an electrical issue, well at least I am hoping anyway.! By the way, it HAS NOT froze up ever except the time that the wire broke off the screw that was keeping the blower from blowing and allowing the outside unit to continue to run. And like I said, it ran for a week after all that happened and it was fine. What are the signs that the freon has been leaking out slow where the guy "soldered" the lines together? Thank you in advance for any help, we are miserable and also pretty broke!

The internals of an ac drier for auto air conditioning.

i own a 94 jeep grand cherokee V8 5.2L, and the a/c is not blowing cold air into the cabin. i know there is no leak and the compressor, drier, and all other a/c parts are working.the expansion tube feels cold when the a/c is turned on, but the cold air is not making it to the cabin. its probably blockage but do not know where? any ideas please?
its blows air into the cabin but not cold.

I got a compressor, drier, and expansion valve… but the directions to just make sure to flush the A/C system before installing the new parts. I don’t have an air conditioner flush machine. Any way to do it with an air compressor?

I have a request by your advice. Last week, when I came back from an activity, I started my car and noticed the air conditioning system was not blowing cool air. Today I took it to a local Nissan dealer with the hopes the problem might be minimal and that I would get off with adding Freon, etc. No such luck. Here was the diagnosis (for which I had to pay 0):

"Customer states that the A/C is blowing warm air. Verified complaint. Found the A/C system empty. Tested and found the biggest leak in the evaporator. Also recommend the rec/drier and Schrader valves as well. Advise. Low pressure remained at 60 psi with the high at 170 psi. Recommend replacing the compressor also. 50 estimated cost.

Also needs power steering system power flush. 8 estimated cost."

So! My question to you is, can I get this done properly at a less expensive place?

Thanks,

William
It is a 1995 Maxima with only 42000 miles.

Nissan Maxima AC compressor and Reciever Drier How To instructioal video

Ranger with newly rebuilt compressor/clutch. New drier and orifice tube. System was evacuated and charged by shop. Was blowing ice cold for first 2 weeks, but now nothing. Clutch engages and turns. Lines leading out of the compressor are super hot. Lines by drier and evaporator are not cool or sweaty. Low pressure reading this afternoon when it’s about 95 degrees here was 105psi. Don’t have the gauges to test the high side. What gives?

I have an 02 Honda Civic LX with a 1.7L engine.
My a/c pretty much works when it wants and when it does it blows hot air in between shots of freon.
I had a cousin of mine take a look at it and he said its the compressor. He couldn’t get under the car to check to see if the connection to the clutch was alright but he said the power going to the compressor is good. My cousin isn’t all the reliable and never came back to check the connection.

I was thinking about finding a machanic that can check it out for me and if he thinks I need a new compressor I would already have one that I can get on Ebay.

So here is my question: What else is needed when changing out the compressor?
I found a compressor with a Drier kit, what is the drier for?