Hi, I have my Acura MDX 2012 for over a year now, the AC was working OK but not freezing cold.
I recharged it with freeon on October (yeah, right before the winter....) and right then it worked freezing cold (weather wasn't particularly hot though), I now started using it again and it's working pretty well but not the way I want it most of the time (not freezing cold).
Should I just refill with freeon again, it should I do a complete flush?
Note; I have no idea what a flush is, and I also don't believe a flush was ever done.
Thanks.
No I just refilled it with an AC pro can I bought, ... (just followed a YT video)
Those things are terrible and can do more damage than good. You can even injure yourself.
Should I drain it now?
You don't just "drain" refrigerant, federal and state laws require it to be recovered and recycled. This requires the appropriate equipment which for most people means going to a shop.
The trouble is that if your "AC pro" contained sealer (most of those stupid things do) no shop will want to touch your AC because that stuff can damage their equipment - and you would be responsible for the cost. (Some shops may be equipped to detect that kind of contamination and deal with it but you would need to ask.)
While not rocket science, air conditioning requires a different set of tools and skills than normal everyday wrenching. If you're not familiar with it and don't have anyone experienced available to show you the ropes it is best to have a professional work on your AC.
I'm not sure the difference between 'evacuate' and 'flush'.
"Evacuate" pulls all the refrigerant out of the AC system and leaves a vacuum. "Flush" uses a cleaning/flushing compound pushed through the system to remove contaminants, typically done after compressor failure to clean out debris.
https://www.youtube.com/watch?v=_IBFLMYZEzI
https://www.youtube.com/watch?v=0HCSsv3uYfM
I recharged it with freeon on October
How did you do that? Did you have the system evacuated and then put in the correct amount of refrigerant by weight? That's the right way to do it and modern AC systems are very sensitive to both overcharging and undercharging by just a few ounces.
Note; I have no idea what a flush is, and I also don't believe a flush was ever done.
Then why would you want to do one? Flushing the AC is not normal maintenance. As Scotty says, it would only be done if there is debris in the system and if you have that situation you have a more serious problem going on, typically compressor failure.
"Did you have the system evacuated and then put in the correct amount of refrigerant by weight?"
No I just refilled it with an AC pro can I bought, I did not evacuate anything before, and did not measure (just followed a YT video)....
Should I drain it now?
I'm not sure the difference between 'evacuate' and 'flush'.
Flushing the system is a giant endeavor using solvents and then you have to buy all kinds of parts like a new dryer. A new expansion valve don't mess with that. You only do that. If something is wrong with the system and crud got in the system then you have to replace just about everything the compressor
I'm not sure the difference between 'evacuate' and 'flush'.
if only there were a way to look up meanings of words ....
e·vac·u·ate
2.
technical
remove air, water, or other contents from (a container).
flush
2.
cleanse (something, especially a toilet) by causing large quantities of water to pass through it.
"the nurse flushed out the catheter"
Similar:
rinse (out)
