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I have an early 99 F-350 Crew Cab Auto. After I got to work today, I noticed my dome lights and cargo light were on about an hour after I shut the truck down. I got in and checked the dimmer switch to make sure I hadn't bumped it and it was in its normal position. I also made sure all the doors were shut and the lights still stayed on. After about 45 minutes, I looked over and noticed they were off. On the way home, the door ajar light was on the entire trip. I noticed that when I accellerate from a light, the dome lights would turn off and I could hear a click under the steering wheel but the door ajar light still stayed on. When I slow to a stop at a light, I heard the same click and the dome lights would come back on. I pulled into the driveway, the lights came back on and stayed on when I shut the truck up, and they just now turned off (I have been home nearly 30 minutes.) Does anyone have any idea whats going on?
Our ex did almost the same thing and I took some WD-40 and sprayed all the door jambs down real good them wiped them off and havent had it happen since. We have a 2003 so somebody with the same setup will chime in with another guess and help you out.