Refrigerant Type: R134a
I'm trying to resurrect the AC in my Altima...I charged the system today and the low side pressure is ~35 PSI when the compressor is running...It will blow cold air (~50degrees F) for a couple of minutes just fine...After a few minutes the compressor clutch stops engaging and air temperature starts to increase ...when I check the low side pressure its running at least 100 (as high as my gauge goes) Im assuming the triple pressure switch is working properly and shutting down the compressor. After turing off the car and waiting 5 minutes the system seems to be fine then repeats the whole process again....it does the same thing if I leave the car running and turn off just the AC for 5 minutes. Im assuming there is some type of pluggage or bleed by from the high side causing this problem....Any help would be appreciated....
Did you charge into a vacuum? Did install the full charge by weight? What are the high side pressures?
I'm wondering if there's an issue with the compressor clutch, like maybe after a few minutes it stops engaging, so his low side reading is really the static reading ???
That's what I read. 35 low (blowing cool) when compressor is running, but cycles off in a few minutes, reads 100 low (static) when compressor is off. Cycle vehicle off for 5 minutes and repeats.
I agree. could be clutch. OP suspects high side issues, suggest to read and post high side pressure.
Just a quick note on troubleshooting update...today I drove the car home from work with the AC on the entire way (it was about 75 degrees outside) The thermometer in my vent consistently read ~50 F with no apparent issues....the temp didnt shoot up like it did while sitting still....I bought a set of manifold gauges today so I will be able to give more info soon....
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