I have a 2010 Nissan Sentra, it has 140k ish miles on it. I’ve only had it for about 30k miles of it. The other day I turn on my car with out any previous problems, the ac is completely not working. I go to drive later that and magically it’s back on. Fast forward the next day, it’s still on but half way through the drive it stops working. When it was working, it was blowing weak but still cold. Also there was no noises or smells when trying to turn it on. If this is important, it was raining and mucky while all this was happening. I did a google search and ofc it comes up with a bunch of option from my filter being dirty to my whole ac being broken.
Another weird occurrence that just happened. Assuming my car would have ac, before work about 10 before I left I turned my car on to roll down my windows and the ac was working. 10 minutes late, I go to leave and the ac isn’t working now. I get out of my driveway and put my foot on the gas maybe 10 mph and it magically clicks back on.
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Hello, a "dirty filter" would not create an intermittent concern. I'd be looking at things that can work sometimes, and not other times.
Since then air conditioning system does appear to work at times, I'd say that the system charge of refrigerant is probably not in question.
This leaves either a climate control issue inside the vehicle, a cycle switch issue under the hood, or a compressor / clutch / coil concern that is intermittently failing.
Hands on testing is needed to confirm what is happening. A specialist for air conditioning systems is needed, as handling refrigerants requires federal certification.
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