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Someone that has well documented the individual vent temps with corresponding ambient temps should then bypass heater core by shutting off coolant flow and then document temps again to see if it truly is a blend door issue. If with no heater core thermal output, the two center vents now are equal temps, it will be an "AHA"moment! We will all have to shut down heater for the summer until FCA decides they "can't take the heat" anymore from the customers . LOL
Yeah! I explained dealers were not resolving problems and claim 60 degree vent temp "is normal" so maybe this will "turn the heat up" on FCA to figure it out. I still think pressuring a high level (and fat helps) manager in a suit coat to drive your truck after it has been parked in the hot sun on a hot day and pull out your digital thermometer and show him problem. After he melts into a puddle, perhaps he will agree with you that things aren't what they should be. (Don't heat stroke him as funerals are expensive!)
5thgenrams.com
You know, my truck has this problem. Less than 4000 miles. Personally I think it is inherit of the design. FCA engineers screwed up and won't admit it. I appreciate that with a modification you can get reasonable temps from the unit. But, why would you accept this to be the resolution on a 55 thousand dollar truck? This is not the fix, FCA needs to step up an admit they fu---- up and come up with an acceptable workable solution. To accept this as the norm perpetuates the thinking that as a manufacturer you can continue to put crap in the market and it will be accepted. Just like any PC I've ever owned. Rant. I'm po'd.
You are absolutely right!!! This temporary band aid will at least get us through the summer until a proper fix is launched as a TSB. I am basically stirring the pot and getting attention from RamCares and TFLtruck as well as all the members here. Ram has built such a cool truck that they have to fix this as Ford and Chev/GMC will start showing ads for colder AC than Ram.
I have had my truck for almost a year and learned last year how to cool my black Limited in Tucson. I set my temperature to low on both sides and control the blower myself and it works great. This even works with temperatures north of 110.
Can you please explain in detail what you mean exactly?
I hope it works. I would not have bought this truck if I didn't like it. There are a number of things I really like ,but this ac issue is clouding the positives. The dealer experience and the factory input doesn't make me feel like a valued customer.
There is TSB 24-001-19 that applies to truck builds prior to 09-20-18. I would point out drivers vent warmer than passenger side. Would be best if you had a thermometer to prove it. Even a digital kitchen probe thermometer for meat will work. Here is TSB attached as well as checkout procedure....
If you put valve on heater core hose you will drop another 10 degrees from vents
Check out KcRay’s thread “Air Conditioning Modified.”
Two of them right next to each other coming out of the water pump. One says "out", the other says "in". They run together along the passenger side of the engine up to the heater core on the fire wall, just under the windshield. The one that says"out" is the one to close off. If you can't see where it says "out"and "in", it's the top hose going into the heater core. I'm assuming by asking this type of question you may not be familiar with this kind of engine, or mechanical work. I would strongly suggest not to do this unless you are absolutely sure of what you are doing. You run the risk of pinching off the wrong hose, or cutting the hose you are trying to pinch off. Looking at the pictures I posted shows the correct hose at the water pump. The make special auto hose pinch off tools as well.
Driver side and passenger side read different. Is the temperature blowing correctly at least on one side though? Will it be different if it was hotter outside like later in the day?
