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I'm in the same boat. 3 months out of the year temps are 100 + hitting 110 in July and August, good AC is a must and not a luxury in a $50k+ vehicle. The best the AC can do while idle at a stop light is 60 degrees. Passenger side is always 10 degrees cooler than the drivers side. Passenger side can get down to low 40's depending on the ambient temp. Drivers side can't get below 50 on max AC even if its only 75 degree ambient. Took the truck into my selling dealer since they are only 5 miles away to have recalls / warranty work done, asked them address the poor AC issue. The result 2 items that they "fixed" were now worse, One of the items they "fixed" they ended up scratching the lens on my instrument cluster and denied they did it and refused to fix it. Under my AC concern the paperwork read " Customer stated poor AC performance, checked for TSB, TSB did not apply" didn't bother to check pressures temperatures or anything else. Called a different dealer 38 miles away. Described my AC issues and my experience with my selling dealer. Service advisers response, "That's not right please bring it to us" he said that the calibration on the blend doors is directly related to the charge in the system and the being a little over or a little under charged will cause calibration issues on the blend doors that compounds with poor performance of the system itself due to charge being out of spec. I have an appointment July 8th to drop it off and give them a shot at making the AC right. If they can fix it I'll post what was done, I'm somewhat hopeful but have a shutoff valve waiting in the wings to cut off the supply to the heater core which should address the imbalance in temperatures. In my opinion it still take way to long to cool down and I think this is a function of a larger problem. I have noticed and perhaps someone else can confirm, on every other vehicle I have owned at idle with the ac system on the idle would kick up several hundred RPM from normal to speed up the AC compressor. My ram stay right around 575 regardless of whether the ac compressor is engaged or not. My GMC would jump up from 550 to 800 at idle with the AC system engaged to get better refrigerant flow through the system at idle for the 3 years I owned that truck i left it @ 72 on auto and never touched it. The truck itself had it's issues but the climate control was superb which makes this Rams AC all that more disappointing.
Mine behaves the same way, no difference in performance between max AC and setting the temp to low, fan speed on 7, recirc on, AC light on. I think the max AC in the climate screen is just a shortcut that sets everything with one touch. it would have been nice to have physical button to do that instead of having to go into a touch screen, same holds true for the sync function i would have like a physical button for syncing drivers side and passenger side as well.
I find it interesting when you hit the max ac it turns off the recirc light on the button then you have to hit the recirc again to get it to to turn back on. I have open a case with RAM and I am taking the truck in on Monday morning. I will let you know what I find out.
My temp gauge doesn’t go down very much at all. It only went down to 97 today after 30 minutes of driving. It was only 87 out.
Yeah, I've been noticing this as well. I parked in the sun and the truck was reading 110 degrees. We did get up to 98 today, but it took forever for the outside temp to come down to 105.
How is your AC performing after this?
Great
