I want to try a few more things before bringing it to a dealership because it’s pretty costly and like to do most things myself.

So first AC wasn’t working, I could hear compressor clicking on and off swapped relay switch with fan see if that was the problem. Still didn’t work.

Checked refrigerant pressure little low so added more. Still didn’t work. During state inspection the mechanic said just needed a new belt. Compressor clicking on after new belt but still no ac.

thought maybe too much refrigerant was added. So slowly bleed some out till slightly on the lower side checking along the way depressurizing. Read these cars like it on lower side. Nothing

I bought new relay switch didn’t help, and about to buy all new Omni ones, think the name. Because also had an issue with battery draining while sitting until ended up buying a new battery.

So I dunno. I’m out of ideas, I don’t use a multimeter very often is there a way to check the compressor? Or just clutch?

 

You heard it clicking as in the clutch clicking on/off? Is the clutch just clicking but not actually engaging and spinning the compressor?

You can get a multimeter or test light and check power on the clutch connector. It's just a few inch long one or two wire pigtail coming off the bottom of the compressor you can get to without removing anything. If you're getting power to the coil but the clutch isn't engaging it's the clutch/coil. That's what happened on mine, the coil was like $100 bucks so I just opted to get a whole new denso compressor for like $200. A bit more money but I figured the compressor is getting old anyways and an extra $100 is a lot less money/hassle than the compressor itself failing down the road and the black death that comes with that.

 

Thanks! I’ll look into that. Did you empty the refrigerant yourself and fill yourself? I read you don’t want to have it empty too long because moisture can get in the lines and may need to add refrigerant oil as well. I’m weary in this department had a bad situation once leading to being covered with neon refrigerant oil lol. Taking apart wrong line on radiator on past car.

 

I don't have the equipment to do a recovery but I did do a vacuum and fill with a cheapo vacuum pump and a set of manifold gauges. Basically yes, if your system gets air in it, moisture from the atmosphere will get in your lines and that can cause problems. Vacuuming basically lowers the boiling point of water in the system enough that the water essentially boils off. For oil there is will be typically an amount specified to add for replacing various components, I think the compressor called for like 4oz when being replaced, I've never really worried about it too much with leaks but TBH I'm not sure if you lose much with a leak or not. I had already bought all the stuff for another vehicle and also had a leak in the system so that did play a role in my decision to replace the A/C compressor rather than the coil and/or clutch which wouldn't really require opening the system. Though that other vehicle had about the same mileage (200k) and compressor failure that required replacing the condensor, drier, and orifice tube as well as flushing every line and the evaporator so I was really trying to avoid that happening on this one.

 

I had a similar issue on my 2007 TLS a couple of years ago and followed this how-to guide from 2010 for the replacement of the A/C clutch coil. It really wasn't that difficult - took a few hours - and my A/C blows ice cold ever since. I have never needed any additional service to the A/C system.
A/C Field Coil replacement guide - AcuraZine - Acura Enthusiast Community
One hint: there are four bolts that hold the A/C compressor to the engine block. Loosen those so that you can better manipulate the compressor and get the new coil mounted.
The local Honda dealer (nearest Acura dealer is 100 miles away) wanted $1,000 to replace the clutch coil. I did it for less than $100.

 

Try hitting the blower Motor after pressing auto it’s located under the glove box. I just give mine a smack and bam it works all day. I have a 2004 TL base.

 

Also just to add, have you checked the schrader valves? I had a leak in one of mine (if I remember correctly the high pressure side), replaced it, had the system evacuated and refilled, and no problems since.