I have now put a little over 1,700 miles on my 2020. (build date was 6/26 - picked up on 7/20)
This thread and many others like it almost persuaded me to skip getting a Ram. (you should not have to hack a new truck!!)
But everything else about the truck had me hooked.
I even contemplated taking a clamp with me when I went to pick up my new truck, for the 3 hour drive back in the heat.
I am glad I still chose to get the Ram. It definitely helps that I got one of the lucky ones that has an adequately working A/C.
Since I know pics are mandatory, I used the only thermometer I had at the house. I need to get a better one and test it again.
I have not added a clamp or valve yet since this is what I am getting out of it.....
when I tested it today (95* outside w/ 45% humidity)
Drivers side center vent... I'm guessing 48*
Passenger side center vent... 42* ish
With the A/C on auto and set to 67* even on the hottest days so far, it will blow hard for the first ten or so minutes and then lower the fan speed down to maintain temp.
Would adding a valve drop the temp, absolutely. But so far I don't feel that I have to just yet to be comfortable.
And for anyone wondering why I am only averaging 14.5 mpg so far.... I have taken a handful (aprox. 700 miles) of fishing trips pulling the boat.
I love that I can set cruse control at 80 on flat roads and it will tach just under 2,000 rpm w/ my 3.21 rear-end. Way better gas mileage than my last F150.
Almost 50 degrees on the driver center vent and a 6 degrees cooler reading on the passenger center vent tells me you have blend door issues, just like everyone else. You need to compare the drivers side vent to the left of steering wheel for accurate testing as that is the vent that typically has the highest temperatures due to its proximity to the blend doors. Also, getting 48 degrees on the drivers center vent on a 95 degree day with 45% humidity is not a tough enough test. I’ve lived my whole life in New Orleans and Houston and every vehicle I’ve ever owned would have no problem cooling the cabin quickly in 100+ temperatures with 90% and higher humidity. This Ram without the hack NEVER cooled the cabin down in those conditions. If the vehicle was sitting in the sun for an hour in those same conditions... forget it!! With the hack, it works much better. The vent temps out of every vehicle I’ve ever owned has dipped into the upper 30’s and that’s the way it should be. When you place your fingernails to the vents, you should feel a slight “burn” from the cool. This Ram does not. Even with the hack it is only marginally good. Without the hack in 100+ temps and humidity above 90%, this system is very sub par.
Best Regards,
Lou