Wiring for under the hood

[Shanna Callaghan Cullen]

First of all don't laugh at me if I'm not using the right terminology I'm trying to teach myself how to fix my truck.

I have a 2007 GMC Sierra 2500 HD.

And on my last short road trip I had a small fire under the hood, and ate away and decimated some wiring. I cannot seem to find anywhere online for free a picture of the engine and a diagram pointing at those wires so that I know where they go to. That way I can know what I have to replace. 

Thanks to anyone who can help or provide me with a website that I don't have to pay for anything right now because I'm not working.

[baileyw813]

Sorry was trying to look at old photos from my wife’s (now sold) 2008 Suburban with the L76 (aluminum block) version of the 6.0. I couldn’t see exactly where your burnt wires were going to. I would take a lot of photos and maybe look on eBay or car-part dot com for a used engine harness. Usually pretty cheap and really just time consuming, not difficult to replace. I have a 2007.5 LMM SILVERADO and replaced the firewall forward harnesses, due to original owner cutting/melting many wires for a bunch of useless accessories.