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Discussion Starter #1
Is there a seperate fuse for my passenger side trailer turn/brake light? I dont have the original manual and all the fuses "look" good. The brake light works on the truck but nothing on the trailer. I traced back as far as I can being dark and only having a flashlight but nothing is making sence. I cant imagin the factory ford wiring harness just going out over night.

Why does this stuff always happen just before a road trip?

Orion
 

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I don't know, but it happens to me too. I think it's just trailers. They never work. :dunno:
 

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Had the same problem

I have a 2008 F-350 same problem no trailer tail lights happened over night,took it in to the dealer and it was the wiring harness at the fuse box had to replace the whole harness luckily under warranty.Good luck
 

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ya there is on my 05 everything is fused that goes to the trailer. fine with me now that I know that
 

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dont remeber which ones but mine is also in the box under the hood, i can look tomorow if you still need it.
 

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Discussion Starter #7
That would be sweet if you could take a quick look.
 

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Discussion Starter #8
Yep, 7.5 amp fuse under the hood. #3
 

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yup #1 and 3 under the hood both have to do with trailer lighting
 
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