I am trying to top off my cars AC system. 2014 Camry. I bought a can of R134a. Currently its blowing cold air about 20% of the time. I do not see any leaks I hooked up one of those Amazon AC pressure gauge filler thingy to the LOW side, and its reading 90PSI. It should be 45PSI max. I did not puncture the can yet. I ran the car for a bit, the pressure did not go down. is the gauge broken or am I doing something wrong?
The car and the compressor have to be running when you read the gauge. If the compressor isn't on, then the pressure equalizes across both ports.
Is it only cold when moving? because that would be a condenser fan not working.
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Anonymous06/13/26(Sat)22:14:57
>>28984310 video screenshot >>28984381 >Is it only cold when moving? no, its random. runs cold about 20% of the time.
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Anonymous06/13/26(Sat)22:27:43
>>28984386 Okay well assuming that when you tested the pressure you had the car running with a/c on max and know that the compressor was running..
I'm more or less educated guessing here as I am not an a/c tech I am merely a parts monkey. But this could be a leak which has let air in and it's tripping high pressure shut off, or a blockage of some kind like in the evaporator or orifice tube, or the compressor is failing and not creating a good enough pressure differential.
It still could potentially be a condenser or fan issue if you haven't ruled that out. These systems are a real pain in the dick, once they fuck up you pretty much just rebuild the shit, orifice tube, evaporator, seal kit and get it vacuum re-filled.
If you want it truly fixed and not beating your head against it an actual a/c tech is preferable.
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Anonymous06/14/26(Sun)01:56:11
>>28984283(OP) its illegal to do this shit yourself for a reason brokie, fuck off and pay someone to do it
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Anonymous06/14/26(Sun)02:43:26
>>28984283(OP) >is the gauge broken or am I doing something wrong?