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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Help with dash lights

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Old Jan 2, 2015 | 12:36 PM
  #1  
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nightowl263
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Help with dash lights

Hey guys, I am having a problem with the dash lights on my 91 F250. They don't work at all, none of them. Previous owners of the truck pulled a camper with it so I suspect they had a brake controller in the truck and connected it to the dash illumination wire. The lights have come on one time since I have had the truck, driving at night, hit a bump, lights came on and stayed on until switch was turned off, never to come on again. I have changed the light switch and no change. I have tried to find a wiring diagram for the truck and have come up with nothing. What color is the wire for the dash lights? Looks like a ticked off three year old has been under the dash playing with the wires, it is a mess! Thanks for the help and advice in advance.
 
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Old Jan 2, 2015 | 03:24 PM
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tjc transport's Avatar
tjc transport
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closely check the plug going into the light switch. the contacts overheat, and do all kinds of weird things.
i have replaced the plug on my 88 3 times so far over the years.
 
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Old Jan 2, 2015 | 09:41 PM
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nightowl263
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Thanks Tom I will check that out tomorrow.
 
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