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1990 F250 burning smell from dash/passenger side door panel
I have an issue and I’m wondering if anyone here might be able to help me trouble shoot it.
the other day I was driving my truck and all of a sudden I smelled a burning smell coming from what I thought was the dash near the radio.
I pulled over and didn’t see any smoke, or anything burnt however it smelled really bad.
I got home and still couldn’t find anything wrong other then the smell.
the next day I tried locking my doors and my door locks didn’t work. I switched the fuses under the steering wheel with the power windows fuse and that didn’t fix the issue.
I then tried to lock the passenger door with the key and it wouldn’t go all the way down.
I pulled the door panel off and found this wire going down into the inside of the door panel and I believe it goes to the door actuator, however for the life of me I can’t figure out how to pull it out.
I also got a strong smell of that burning coming from inside the door panel cavity so I’m guessing that whatever the wire goes to fried.
however I don’t know why it would have burned up while I was just driving.
any thoughts on how to test, or remove it and replace it would be helpful.
To test the wiring, unplug it from the actuator. There will be 2 ports, and its a simple reverse polarity set up. Using a test light apply the ground, then probe 1 side, hit door lock switch, 1 of the sides will light up for lock, other side for unlock. If that works, I would assume you have a bad lock actuator. Pretty common. A bad actuator will seize up, and not allow the key to turn the rod, as the actuator is part of that procedure. And since its electrical, if it shorts out, you will get that smell.
To replace the actuator, you will need to disconnect the rod from it. Then looking at the back panel of your door, you will see a rivet. Drill out this rivet, and actuator will be freed. Replace new actuator with a short nut and bolt setup, or a new rivet. Nut will be on the outside of the door. Its kind of a pain to do. I used a longer bolt than necessary, and used bolt cutters to trim it off flush with the nut. Plenty of clearance in the door jamb from this.
From the picture, it looks like many of the the wires from your window and lock switches are cut. It also looks like, from the electrical tape on the wiring above the cut wires, the switch has been replaced or worked on.
Those wires need to be protected from the door panel pushing them into sharp inner door areas.
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