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The Something Awful Forums > Discussion > Automotive Insanity > The 2024 A/C Thread: I've been telling you it's not Freon for 11 damn years
 
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casque
Mar 17, 2009
 So what do you do if your high side and low side pressures are both high and your AC only gets slightly cool?

* # ¿ Jun 28, 2022 21:17
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# ¿ May 13, 2024 19:44
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casque
Mar 17, 2009

Motronic posted:

Empty the system. It's contaminated with something that's not supposed to be in there.

I'd be really curious how that happened, who was working on it, etc, etc and would want as much information as possible to inform my next decisions on how to prep the system before charging it again.

I'd be inclined to flush it. And potentially replace parts. But of course this all depends on the vehicle we're talking about. And whether you can determine if someone put anything with a sealer in there (which will trash the whole system if you drain it).

2002 Mercedes E320. I suspect the PO may have overfilled it with refrigerant because I bought it used 5 years ago without working AC and they said they'd just recharged it. When I purchased it I cleaned the "duovalve" which got the AC working just fine until this summer.

No idea if there's sealer there. I assume there's some refrigerant and while I've got a vacuum pump I'm not equipped to capture what's in there.

* # ¿ Jun 29, 2022 00:52
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The Something Awful Forums > Discussion > Automotive Insanity > The 2024 A/C Thread: I've been telling you it's not Freon for 11 damn years