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Hi, I'm new here and this is for my son-in-law. He works long hard hours and doesn't have much free time, so I am going to try to help him. Here's the problem: He has a 2001 Ford F250 super duty. When it rains, the truck takes on a new life, by itself. When it is just sitting in a parking lot after being turned off it will start making noises. It will beep, lights will come on, the radio will come on. And many times the interior lights will stay on for 15 minutes or more. I'm mechanically challenged so I can't get too technical. Basically, the truck acts possessed. And there are times that it just won't start. Mostly the problems are when its raining. I guess my question is : Where do you start to look, for a problem like this. I hope someone can point us in the right direction. Thanks!
The rain is a good clue. I would start by making sure water isnt getting into where it shouldndt be...any past body work with open holes.....missing trim peices...missing antennal...
Since the interior light is staying on, maybe it has to do with the door switch getting wet when it rains making it think the door is open.
In the F-150s there is a problem with some of the windshields leaking and letting water get into the GEM module (backside of fuse box) causing this very problem.
I would think water , or at the very least humidity/dampness is getting where it shouldn't. Does it happen everytime it rains? or just when it pours? or whewn there's a heavy fog?
I seem to remember reading on a similar thread/topic a few months back, that the fault resided with a leaky windshield allowing water to get to the back of the fuse panel.
Try pulling some of the fuses out & checking for any indication that they've been subjected to moisture. You can also check the fuse box lid for the same...especially if it is acting up...I'd suspect it should catch any water that might make it's way through the fuse panel.