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Trailer light harness ??s

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Old Oct 14, 2008 | 02:03 PM
  #1  
dstryr's Avatar
dstryr
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From: Nebraska
Trailer light harness ??s

Hello, first post here...

I have an '01 supercrew with the factory tow package and when I first plug in my flat trailer using the round connector and hit the brakes the trailer brake lights will not come on. If I have the parking lights on the trailer lights go out when I hit the brakes. Same general thing when I use the 4 flat connector for another trailer.

BUT, after I am on the road for a short time, maybe a few miles, everything starts working and there are no more problems. I used to pull a trailer several times a year and don't believe I ever had this happen, but I haven't trailered much in the last 2-3 years. The first time this occured was a couple of years ago and then today.

Fuses are good- I swapped them out just to be sure with new ones and no change until I was on the road.

Has anyone experienced this or know if Ford has an issue with it?

Thanks,
Frank
 
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Old Oct 14, 2008 | 02:40 PM
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Ron W.
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From: Stockton Ca.
First guess, check and clean grounds, if needed fabricate a ground wire that runs from the truck to the trailer. Good luck.
 
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Old Oct 15, 2008 | 05:23 PM
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From: Long Beach, Ms.
Sure sounds like a grounding problem as Ron says.
 
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Old Oct 15, 2008 | 07:17 PM
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DirtStripHero
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From: Indiana Cornfields
welcome to the site!!!
 
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Old Oct 16, 2008 | 08:03 AM
  #5  
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Dstryr; Sorry but I forgot to say WELCOME to FTE.
 
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Old Oct 16, 2008 | 09:32 PM
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your getting your ground thru the ball hitch after thr rust wears off. get a good ground wire.
 
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Old Oct 20, 2008 | 02:18 PM
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dstryr
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Thanks for all the replies and warm welcome. I'll add a ground wire and see what happens.
 
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