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Yes, you are correct, it should cycle based on pressures, and I would expect that. What I'm seeing on mine is that even with MAX AC on, the compressor cycles based on the EVAP Temp Sensor hitting 38*, not pressure. So it will cycle off at 38* and back on at 44* over about a 10 second window...
I would be very happy if mine would deliver those vent temps. Would you check your truck after a short drive and see if the compressor cycles under a high cooling request? Turn MAX AC on and listen to see if you hear the distinctive click of the AC compressor turn on. Easy to hear by the...
I posted this over on the HD site. Even though this is for my 2500 which uses a different refrigerant, may be it is applicable here too.
After having the AC TSB done early this year, I was still not happy with the AC performance. While better than pre-TSB, I am still seeing a low of 50*...
The AC, also, is by far my biggest complaint. It just absolutely drives me up the wall that the support for this issue is almost non-existant. Mine is actually worse than yours. Morning outside temp 66*, driver's side center vent 53* and passenger's side center vent 47*, fan on 4 and temp set...
Actually, if you look at minute mark 5:20 in the video, you can see in the screen of the RAM says the outside temp is 68* and at 6:10 the Ford's screen shows the outside temp as 66*.
Based on this information, I would say if Dusty's specs are accurate, the RAM does not meet it's A/C performance...
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