So I have been reading these message boards....and I have the same problem as others about the a/c not cooling well enough...I have a hvac thermometer that I keep in the truck. took it in for it's 1st oil change and told advisor about tsb on the a/c.. I got it back, and they said it's all fine and that it blows cold to 40degrees. I got in my truck, stuck the thermometer in the vents, and just as always, it doesn't get to about 50degrees! I check that thermometer every day and it is steady at around 50degrees, which is 10degrees warmer than all my other vehicles. Any advice on what to do next? it's not a big problem yet, but in 1 month when temps are 90 and above outside, it will be noticeable.