Over the past month I will open my truck door and the lights inside the cab will come on very slowly almost like the battery is dead. If I turn the key it will fix itself and truck will crank. Last night when I opened the truck door it was like a rave party with the dome light, door ajar, the odometer, and the tow/haul lights flashing on/off constantly. Truck wouldn't crank either but when I turned the key something under the hood, I believe around the fuse box, would make a really loud buzzing noise. Jiggled all the wires and nothing. Popped the top on the fuse/relay box and pushed all of the relays which fixed the problem. Drive home perfectly fine only to have the issue start again when we turn the truck off. Went out this morning to try and figure out what's going on and nope no issues at all!!!!

Im thinking it's a relay going out, but can't find any info that actually pertains to my specific troubles. Anyone deal with this before?

Also so the battery is a couple months old and test good.

 

Battery. Have it load tested.

 

Actually it was the positive side wires. Upon further inspection of the two wires going to the positive post most of the strands had broken from age and that was the issue.

 

Glad you found it.