7 pin hook up - Ford Powerstroke Diesel Forum
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post #1 of 5 Old 03-13-2009, 05:13 PM Thread Starter
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7 pin hook up

Im sure you guys already know and Im probably the only jack a@# who didnt but after alot of research found out. If you use your 7 pin and are not getting 12Volts to the power outlet (black wire) you need to install a relay in the little box under your hood beside the bigger fuse box. Just though I would share in case anyone else is trying to figure it out. Please take it easy on me!

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post #2 of 5 Old 03-13-2009, 05:16 PM
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Well I'm not gonna dog ya, cuz I didn't know anything about that. Thanks for the info!

Steve

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post #3 of 5 Old 03-13-2009, 05:20 PM
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did you install the 2 maxi fuses in the emgine compartment box? They are missing from the factory, hope thats what you are looking for and not a relay.



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post #4 of 5 Old 03-13-2009, 05:25 PM Thread Starter
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Quote:
Originally Posted by AFBLUE View Post
did you install the 2 maxi fuses in the emgine compartment box? They are missing from the factory, hope thats what you are looking for and not a relay.
Yeah thats the wierd thing. A tech at a u haul place told me about the maxi fuses, checked them and all the slots except one had fuses in them. I had to buy a relay (bought two acually just to fill both slots I know one is for the 7 pin have no idea what the other slot is for ) but yeah its the little box that doesnt have nothing in it but two slots for relays because you have two smaller boxes beside the fuse box.

2000 F350 CC SB 4x4
6" lift
36" 15.5 ATZ Micky T's
20" Niche Roxxy's
AFE Pro-Guard 7
5" MBRP Exhaust
Predator Tuner
Pyro, Boost, Trans Temp, Fuel Press. Gauges
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post #5 of 5 Old 03-14-2009, 08:04 AM
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7-pin

Depending on your trailer wiring requirements you can use the relay to provide 12volts to the black wire with the ignition switch on. My requirements dictate a constant 12 volts to the trailer connection at all times for trailer interior lighting, so I installed a jumper in the relay spot. I keep the relay in the console for accommodating friends trailers demanding ignition on 12 volts. Either way short protection is provided by the maxi fuse.
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