My engine fan runs randomly even when the engine is cold. Dealer says PCM is turning it on and that RAM is working on a fix. Anyone else have this issue or heard of it? Not sure I believe anything the dealer tells me. I have a 2019 2500. I bought it in December and it's always had this issue. Freaking annoying!
I'm having the same issue. I've got 20k on my '19. At about 15k, the fan would randomly stay on for a trip to work about once a month. Obnoxiously loud, sounds like an airboat. Can't make a phone call over that racket. This past week, the fan has stayed on constantly every drive, has yet to go off. I also noticed my MPG has gone down. According to some reading I've done and talking to a diesel mechanic buddy of mine, it seems that it is probably a faulty fan clutch. I mentioned this to the service dept. at my dealer a month ago, and his exact words were "That's normal, its hot out." Unfortunately, NO, it is not normal, it is not supposed to do that. I'm taking my truck in tomorrow, and hopefully they can diagnose the problem since the fan is now stuck on all the time.
It is pretty disappointing to spend $60k of my hard earned money on a product and it doesn't work properly. I'll update this post when I get it back.