The units really aren't big enough to cool really well at idle with a hot sunny day (a lot of solar effect through the glass) but, is it worse than it used to be?
If it is, can you hear the efan? You should be able to - unless your truck is really loud. If you can't then it might not be turning on OR it's turning too slowly.
Does your clutch fan still give a short roar on cold startup? You should hear it for a few seconds on a cold startup and then it should quiet down and slow down.
I hate to tell you this because it can be DANGEROUS if you don't know what you are doing, but you can actually stop and hold the clutch fan (after initial cold startup) if you know what you are doing and are careful - and then see the efan and if it is on and turning. You should be able to hear a good efan when on.
ONLY do this if you know what you are doing AND after it really slows down at idle - the clutch fan should almost come to a stop at idle - almost, you should be able to see it significantly slow down if it is working correctly.
IF you don't see it slow down significantly from start up or see that it is turning slowly, don't attempt to stop it - if this is the case you should maybe hear it and feel a good bit of air being moved - more than enough to make your AC work as well.
Ideally use something other than your hand and something softer to gradually slow the clutch fan down until it stops. You don't want to damage the fan. Maybe a leather glove or something and barely touch the fan with it.
It might not be worse than it was last year, but I don't remember if the AC was kind of crap at a light. I know the blower in the truck basically never turns off of high in the dead of summer, even 6 years ago when it was brand new.
The engine definitely is loud AF when it first starts from the fans ramping up, then it quiets down.
I have no intentions of grabbing the clutch fan, but I also assumed it was directly coupled to the "clutch", so it would be 1:1 with the RPM of the engine. Didn't know it was "controlled" as well.
Coolant usually sits between 201 and 204F, even at the lights when the AC is blowing "room temp" air. (IE it's cooler than external, but not the antarctic tornado I get when I'm cruising.)
I get that I likely won't get the antarctic icicle producing frostbite at a light, but it feels like I'm almost getting to the point I would start to sweat, from the poor AC performance, plus all the heat radiating into the truck.
I'm thinking about some Dynaliner (or equiv) when I finally start taking the door panels off for various other mods/work, see if that helps some, as well as some ceramic tint (IE the stuff that basically is optically clear, but blocks some extra IR/UV to help keep the truck cooler.)
Which would also likely get done on the headliner when I pull it eventually to "fix" where it isn't sticking properly around the stupid sunroof. (I HATE that you have to have a sunroof if you get basically anything above like a BigHorn.)
