2001 Ford F-250 7.3L Deisel 2wd Regular cab Long bed
I got it on a trade and I have noticed that I have no running lights in the rear also Speedo doesn’t light up! Blinkers, Brake Lights, and Reverse Lights all work as should! I’ve checked the fuses and found nothing I sanded down two grounds one in the engine bay next to passenger side battery and the one in the rear driver side frame rail still nothing I noticed a green wire was cut but I can’t find where it went it’s right after the plug on the harness on the frame where they connect thought it was a ground or something but nothing idk anymore!

about to just put trailer lights into the truck and call it good

 

Speedo doesn't light up, I assume you mean one of the instrument cluster lamps is not working, and you can't see your speed when driving at night. Check Interior-Illumination.pdf below.

Rear running light (tail light), to be more specific, the rear parking lights including license lamp which you never mentioned whether or not it's working, and then it's also assume to be w/o blinker w/o reverse w/o brake.


You can go over the symptom chart above. Pinpoint S and T attached below.


Above shows you the ground locations you are interested, on the right shows you the location diagram, for example 151-7. This is just a picture without the clickable link. To see 151-7 check ALL-Location.pdf attached below, it covers all locations of your whole van. Below is the index page of ALL-Location.pdf:



Above is the wiring color code.
Below is just the index page of ALL diagrams for your whole van, must download the ALL-Diagrams.pdf if you wish to work on your van.


Not just parking light, anything with exterior lamps download Exterior_Lamp-Diagram.pdf below.
Everything is included and you are on your own now.
If I were you I would first check on the license lamp, I assume it's not working as well.
Need further help please be specific.