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View Full Version : trailer lights need help



Steves LX
10-29-2008, 09:01 PM
Well unrelated to the other guys problem so I am making a new post. I have a trailer that just has the 2 rear lights. For some reason the parking lamps will work but as soon as you open the door it blows a fuse and goes out. The brake lights will still work though. So I got in the truck and turn the light on after I replaced the fuse and everything is working but as soon as I put it in reverse the fuse blows again and they stop working again along with my back up lamps on my truck. Any ideas as to what is going on here. This is a friends trailor and it works just fine with his vehicles. My truck is a 2004 F150 new body style.

mustangjon
10-29-2008, 09:59 PM
sounds like somehow in your trailer wiring harness there is some sorta short, and with the trailer drawing the extra load its going pop. On side note, your truck a 5.4 and if so are you interested in a hypertech? lol i have mine out of my 04, i pulled it out when i got rid of truck

Steves LX
10-29-2008, 10:11 PM
O.K. I will dig thru it and see. No my truck is a 4.6