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Discussion Starter #1
Good afternoon. I was wondering if anyone on here is having the same issues with their Esteem as I am. The A/C on startup runs cool for about 10 minutes then it turns warm. I took it to an A/C tech that said it was low on coolant and he thought it was probable the pressure switch on it. He told me that it should work fine after he charged it. Well, today I took it out (and it's 92 here today) and it did the exact same thing. The compressor comes on when I first turn it on. The condenser and fan are working too. Would the pressure switch cause it to stop running cold completely? Thanks!
 

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A little late reply. I had a similar problem with my 2004 XL-7. Apparently it was a slow leak in the A/C system. They couldn't locate it but the freon that they added has a sealant additive and it's also UV dyed, in case it keeps leaking they can locate the leakage easily. It's been 3 weeks and so far, so good. A/C is working like a charm. Good luck!
 

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you have 1 of 2 things here,
1: slow leak causing pressure drop shutting system down.

Does it blow cold the following day? for about 10 mins then shut down again?

yes? it ain't got a leak
no, then its lost pressure.

2: based on "yes" being the answer to the first question, then you have another issue. More than likely it will be a blocked or sticking TEV valve (expansion valve) in the AC system, or contaminants in there that are freezing causing the valve to stick. This can cause the compressor to fill with liquid refrigerant severely damaging the compressor.

Any decent AC specialist should be able to diagnose it but only if he is watching the gauges properly.

https://www.freeasestudyguides.com/txv-thermostic-expansion-valve.html

this site explains it reasonably well. Go to another A/C guy and tell him the exact symptoms and when it does it. I'm picking the a/c comes right after about 6 hrs sitting once pressures stabilise and things cool down. Then it all starts again, runs 10 mins, then shuts down.

I have the dye in my systems, its handy to have just for ease of finding a leak (usually a pin hole in the most inaccessible place of pipe)
 

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Discussion Starter #4
Hey! This specialist ran dye through it and said that it wasn't leaking. It does blow cold the following day. It even blew cold a few hours later and does cut out right about 15 minutes. I actually had a thought that it might be the expansion valve or issues with the evaporator but the guy dismissed it.
 

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Hey! This specialist ran dye through it and said that it wasn't leaking. It does blow cold the following day. It even blew cold a few hours later and does cut out right about 15 minutes. I actually had a thought that it might be the expansion valve or issues with the evaporator but the guy dismissed it.
I will put money on it that its the expansion valve.
 

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Discussion Starter #7
I agree. I'm going to have someone else look at it. I don't have a recovery unit.
 
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