I was off-roading my 99 f-150 at a local ORV park, Walker Valley in Mount Vernon, Washingtion State. Not too tough of trails for a stock 4x4, but half way through, i noticed my windows were not working. I got to a clearing and started to troubleshoot. I found fuse 110 in the engine compartment to be blown. I swapped fuses with a less important accessory and everything was good......for about 10 seconds till i closed the drivers door and it popped. I swapped another, and it held for about 15 seconds, I didn't close the door tis time. So i don't know if I have a wire chaffing near or in the door, or a faulty window button on the door, or what...hence i am posting this to see if anyone else has experienced this

Kinda mad a little innocent off-roading can cause this. I'm an Aviation Electrician in the Navy, but i don't want to go tearing up my truck to find the problem.

 

Sounds just like the problem I had with the door lock fuse.

Everyone who owns a 1999 F150 should inspect the wiring behind the doors as I illustrate in this gallery:

https://www.ford-trucks.com/user_gal...&albumid=20682

The wires were indeed rubbing against the metal cross beam in the door until the insulation wore through. My door lock wire happened to be the one shorting out. I thoroughly wrapped the wires, then "padded" the metal with duct tape. I guess since it's not "safety" related, there'll be no recall by Ford.

 

Thanks R8r. This morning, after hoping it was a moisture issue from hitting some puddles hard, i tried a new fuse. POP! I took the skin off the door and looked at the harnesses. I shook and tugged on the harnesses and have not had the fuse blow again. I did not remove the speaker though. I'll take a look behind it in the a.m. and let you know what i find.

Also, I went through too many fuses. I may be a little back woods, but a little solder can make use out of those "LITTEL FUSE" fuses again. Heck, at $4 each, I'll take the risk. This is proof where the auto industry is sticking it to us! Why don't they just put in circuit breakers?

 

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You couldn't have been more right if you had broke into my truck and intentionally chaffed the harness. I taped up the harness pretty good and added mor tape to the rib to take the edge off it. I checked the passenger side and it's harness has different bend to it, so it don't look like there'll be a problem there. Once again, Thank you.

Here's some photos.

https://www.ford-trucks.com/user_gal...&albumid=20756

 

You're welcome. Thanks for taking the time to post those eerily similar photos.

It's funny how we naturally assume something we did with the vehicle caused the problem. In your case, 4 wheeling MUST have messed up the window electronics. Mine happened a week or so after I replaced both door lock actuators. I figured I screwed up the wiring somehow until discovering that the door had to be opened at least once for the fuse to blow.

I think we've just begun to see this manufacturing defect "mature".