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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

back up lights on when lights on

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Old Sep 8, 2003 | 07:58 PM
  #1  
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GR8 1
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back up lights on when lights on

My 86 ford f250 b/u lights are always on when my head lights are on I can't get my inspection sticker until I fix it. PLEASE HELP
 
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Old Sep 8, 2003 | 09:26 PM
  #2  
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1987LTDmasta
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back up lights on when lights on

hrm... how about when you hit the brakes? its very likely just a short in thewiring by the tailights.. if you have aux wiring for a trailer, check the wiring there.

you may have also installed the bulbs in the wrong sockets on the tailamp assembly..
 
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Old Sep 9, 2003 | 01:22 AM
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Mil1ion
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back up lights on when lights on

Do you have running lights at the same time ?
 
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Old Sep 9, 2003 | 08:05 PM
  #4  
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back up lights on when lights on

Yeah I have running lights at the same time
 
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Old Sep 10, 2003 | 12:33 AM
  #5  
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packlet
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back up lights on when lights on

have you checked your neutral safety switch?
you might have such symptoms if it shorted.

mine died open. it's not an easy part to find. to get the backup lights working again, i bypassed the NSS and put a manual switch on the dash...
 
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Old Sep 10, 2003 | 12:49 AM
  #6  
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Mil1ion
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back up lights on when lights on

Pull the fuse for the B/U lights.

If they are getting power from the running lights the B/U lights will stay on when the fuse is pulled.

If they go out, the problem is part of that circuit.
 
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