Also depends on air temp. A friend of mine is services manager at jeep dealership, last trip in I voiced my concern about not cooling like usual when excessive heat ( we had a heat wave for over a week an over 95 degrees). On cooler days (under 90) it blew crisp cold air. He told me that thermostat will only cool air 20 degrees colder that outside air temp. So, if its 100 degrees out, cabin only gonna drop to 80 degrees.
2011 Liberty Sport
2 KC Slimlite[RIGHT] 130 Watt Long Range on JK Bar
TMS Aluminum Roof Rack Cross Bars
Cobra 75, Firestik Door Jam Mount, HD Spring, 2Ft Firestik
Dunlop Fierce Attitude M/T
He means the temperature drop across the evaporator coil. If 100* goes in 80* comes out but after the inlet air temp drops to 90* then the outlet temp should be 70* and so on. Mine is the same way but after it runs for a few minutes it cools off a lot more. (houses are the same way)
2010 KK Sport, Detoures Knucklebone & backbone, smittybilt XRC 10, rigid led lights, R/L sliders & rack, cb, EMT2, R/K 15x7, OME, JBA, mopar skids & hitch, headlight covers, 4.10's and TruTracs
Everyone seems to forget that we are trying to cool a metal box with a lot of glass surface area. If you can get the middle of the interior space lower than 75* on a 100* day, you're doing better than most. The R12 in my 22 year old XJ cools much better than the R134A in my 2 year old KK and my XJ is Black.
Not related to the compressed system, but it's good to check the cabin air filter. I had a little mouse decide to make a house in my filter one year. After cleaning it all out and getting a new filter, my A/C had a remarkable improvement.
I will go off subject here just a bit but when I had my 88' Dodge Dynasty I installed 2 smaller electric fans next to the main electric fan it kicked when I would turn my Ac, it ended blowing out at about 38 degrees of course it was before the RFC stuff. lol
When you get knee-deep in a situation, floor it.
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