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Old 07-24-2013, 07:12 PM   #1
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rewiring 2000 f250 trailer harness

So the wiring under my truck is garbage.... what do I need to do to to do a rewire? Im ready to set the truck on fire....
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Old 07-24-2013, 09:21 PM   #2
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Find where the main harness comes to the back.
Curt Custom Fit Vehicle Wiring for Ford F-250 and F-350 Super Duty 2000 - C55243
The gray connector is what you're looking for. As long as it's there, just buy that and plug and play.
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Old 07-24-2013, 09:44 PM   #3
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Find where the main harness comes to the back.
Curt Custom Fit Vehicle Wiring for Ford F-250 and F-350 Super Duty 2000 - C55243
The gray connector is what you're looking for. As long as it's there, just buy that and plug and play.
What are the fuses and relays for?
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Old 07-25-2013, 06:28 AM   #4
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What are the fuses and relays for?
You won't need them if you are replacing a bad harness. They are there because the fuses and relays won't be in the panel if you didn't get the factory tow package.
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Old 07-25-2013, 06:39 AM   #5
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Relays are for trailer tow battery charge and trailer tow backup lights.
Fuses are for same if they aren't already there.
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Old 07-25-2013, 06:41 AM   #6
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Relays are for trailer tow battery charge and trailer tow backup lights.
Fuses are for same if they aren't already there.
My truck has the factory tow package. I had to fix my taillight wire before the connector. Everything after that is trash.
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Old 07-26-2013, 09:50 PM   #7
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My truck has the factory tow package. I had to fix my taillight wire before the connector. Everything after that is trash.
Got the harness installed. Still didnt work. It was the damn fuses under the hood!!! But NOW they work. But....... when I turn on blinkers they all dim and kinda flash. Hit the brakes and the damn near go out. What can cause this? Thanks!
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Old 07-26-2013, 09:57 PM   #8
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You sure that the truck and trailer are wired to match?
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Old 07-26-2013, 10:24 PM   #9
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You sure that the truck and trailer are wired to match?
Uhhh. I think so. I got a factory 7 pin harness and the cord plugs right into it.
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Old 07-27-2013, 07:39 AM   #10
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Check the ground both on the truck side as well as the trailer side.
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Old 07-27-2013, 07:53 AM   #11
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Check the ground both on the truck side as well as the trailer side.
Any idea where to check on the camper side? I found a truck ground to do.
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Old 07-27-2013, 03:20 PM   #12
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It should not be far from the cable end and should be attached to the chassis.
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Old 08-01-2013, 08:53 AM   #13
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Cleaned all the grounds and nothing has helped.... the house battery is junk. Wont hold a charge at all. Could this have anything to do with it? Im ready to scrap the damn thing.....
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Old 08-01-2013, 10:28 AM   #14
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It might, but I don't think so.
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