Hi, I am new tot his site but have found great info from this site before so I wanted to give it a try. Anyways I have a 2006 F350 6.0 and a couple weeks ago I have been having issues with my running lights. In the fuse box under the dash fuse location 17 blows as soon as I insert the fuse leaving me with a short somewhere, no instrument cluster lights (but the instrument cluster gauges work and operate fine), and no running lights on the truck. I have been looking for hours and days and cant seem to locate this short (witch I am assuming it is) if anyone can get back to me and help me with some advice or pointers or maybe even experience in there own truck. I'm not sure exactly where to start.

Please help

 

Did you check the power distribution box under the hood to make sure you have no blown fuses or relays in there? Check and make sure you have no fuses or Relays in there that are blown.

Next thing for you to check is your switch that you turn you headlights on and off with. Once you have determined your fuses under the hood in the power distribution box are good, put a good fuse back in slot 17 that was blowing. Then go and turn the switch on for the lights like you would if you were driving home at night.

If that fuse blows, then your problem is going to be with that switch. Try that and lets see if that triggers the fuse to be blown Sometimes that switch can go wonky.

Have you installed anything new lately ( trailer brake? new trailer connectors of the 4, 6, 7 pin varieties? put in a new stereo? added in anything where a wire could have been pinched? remote starter? ) anything where something could have gotten tapped into or moved around?

 

Here are several threads dealing with your exact problems. There are diagrams and insight in those older posts.

Ford Truck Enthusiasts Forums - Search Results

The 2004-2008 SuperDuty F17 wiring is all pretty much the same.

 

I have checked the fuses and they look fine as well as I do have an after market car starter and deck but looked at the deck and looked fine as well. My fuse pops as soon as insert the fuse in no matter what position the switch is and i have an integrated trailer brake factory .

 

I had to replace the switch on mine, I opened it up and found the circuit board on the dimmer side had been shorting out causing the fuse to blow. There's a guy on EBay selling OEM Motorcraft parts, I bought the switch for like $53.00 free shipping, had it in about 3 days. Good luck, I hate tracing electrical stuff.

 

Gotta love FTE, lots of good info from the folks here. Looks like the guys have come up with some other things for you to read from fellas that had similar problems. Let's hope that your able to track it down.

 

A switch is pretty easy to check and it doesn't coast $53 to find out if it is or isn't the problem.

Just unplug the switch and see if the fuse still blows or not.

 

I have found there's a major difference with wire harnesses. I just had my 04 f250 re cabled with an 05 f350 everyone I talked to said oh ya plug n play 3 days tops it'll all work. I was working out of town so I had my buddy setup the shop for the swap 7weeks later I have a pile of junk in the driveway I opened the door and it looks like a wire bomb went off. The shop guy ran down the list and he's right a lot of the plugs are very different and I went out and tried to sort it out. Currently I can get it fired up on a button switch no power to OBD plug so I changed fuses and as soon as I turn on the headlights pop there goes another fuse. So far I've traced it to a white brown wire that splits into a different plug on the fuse bobox and that's as far as I got so far. So nothing works my truck that was rolled and drove it home with a smashed cab rolling on 38's is just a junk heap. I'll keep you all posted