My fathers truck had the tail lights go out the other night so we checked the fuse and the bulbs both good. Took it to ford and they found that a wire harness in the front left wheel well had rubbed through and needed replacement. I went and checked mine and yup it was rubbing through the wire just not all the way yet. Might want to take a look. It is at the top of the well near the coil spring. I will get the camera out tomorrow in the daylight and take a picture of the location.

 

Thanks for this info. Will check mine in the morning.

 

Thanks for the info. I am going to check mine this morning.

 

A couple of weeks ago I pulled away from my buddeis place and he called me and said I had no tail lights. I checked the bulds, they were good. Checked the fuse, it was good. The license plate lights worked (on same fuse as tails). WTF! Spent AN HOUR under the truck and finally found a broked wire at the plug near the spare tire. Almost looked like it was cut. I suspect it was pinched somehow when the truck was built and either just lately let go or it could be that I have not had tail lights for a year and a half and not known??

Not enough wire to solder and shrink so all I could do is put a connector on (red one below). Then I gooped it wih brush on electrical tape (I love that stuff).

If they go out again I will know where to start looking!

Thanks

 

Can you post pics of the area so the guys and gals know where to look?

Andy

 

What is your build date and a picture would be great, when you have the time.

 

To much rain in NY yesterday will try to get a pic today. Build date was July 2010 don't remember the exact date of the top of my head. My fathers truck was built the same day and is spec'ed the same except I have two tone.

 

look at top left spring area. the perch a tad behind spring centerline. and just below the infender.a big harness with a big takeoff. that harness lays right on top of that steel. can either have dealer repair or get some black convoluted tubing.and wrap around it.and if want to, tie harness up to inner fender. but it will cut thru the wires if no action is taken.

 

Ok took some pictures. The wire bundle rubs on the liner and ends up cutting it. Last pic is just showing off my truck and trailer nothing to do with the problem. Also notice the very dirty front rim. I have a bad caliper that ford says is still good. That amount of brake dust is normal to them.

 

Thanks for the heads up urzu007!!
And hdslider is right, you all should take a look at your and do something or it looks like it will cut through eventually.

I checked mine and it was not cut through but well on it's way.

I just split a piece of 3/4 heater hose and wraped it around the bundle.
Should take a while to wear through that!

IMHO, this one should be in the tech folder, it will effect lots of trucks eventually.

 

Checked mine. No chafing but the loom did not cover the wires so I could see an issue in the future.

 

Happened to me in the middle of a snow storm plowing. Luckily I have strobes on the rear. I went crazy following all the wires, then I got a bright idea......check this forum. And as always I had the answer in two minitues. I checked it, and sure enough there was one wire almost cut completely and another chafed pretty bad. Thanks guys.

 

Mine is also rubbing in the same spot.

 

OK all i put my dually in the ditch cause of bad tires and icey roads... the next day i have no tail lights, no dash lights, only one turn signal and one brake light. i checked the fuses i pull each one out and they are all good, i took the truck to my local auto zone and they replaced my bulbs and they still dont work... Please help

i will be looking at the wire harness pictured above when i get home from work... did you guys lose your dash lights too??

any other suggestions before i spend a small fortune at the dealship??

2000 F350 dually with the 7.3 diesel

 

Hey so I had a feeling it might be a wire or harness issue after I checked the bulbs, fusees, and what not. I looked in the back of the truck where the tail lights are and couldn't see nothing wrong never expected it to be up front ill check mine out there hopefully that's it cause I ain't got no reverse lights either weird