My truck went to the dealer this morning to address the AC issue. The outside high temperature for the last week has been around 93-94 degrees. My driver side vent temps have been staying around 55-60 and very slow to get there; the passenger side temps about 5-8 degrees cooler.
This morning, the outside temp was 70. The high today only reached 82. The AC seemed to work fine this morning (70 degrees outside). The dealer kept the truck all day and tried to troubleshoot the issue multiple times throughout the day. He stated they were unable to determine the problem, but he does believe that a problem exists based on the fluctuation in vent temperature and the 49 degree vent temp. He stated they somehow reached a low vent temp of 13 degrees (???) this morning, but the vent temp was around 49 degrees this afternoon (even though it stayed a constant 52 for me the entire way home this evening). The bottom line is that they were unable to determine the problem, but stated that something is not right and want more time to troubleshoot.
I believe the vent temps were not as high today because the outside temps were about 10+ degrees cooler than they have been for the last week. Once the outside temps increase again, I will take the truck back for further troubleshooting.
The service employee was extremely nice, seemed to take a logical approach, didn't use the "within specs" excuse several of you have received, and he gave the impression that they genuinely want to identify and resolve the issue. I am, however, a bit disappointed that they kept the truck all day, admitted something is not right, but were unable to resolve the issue on this 2nd attempt. The 1st attempt was service bulletin 24-001-19. Hopefully, they will be able to determine the issue on the 3rd attempt when the outside temps increase.