86 GMC Sierra Classic 2500 questions

[motornut]

Originally Posted by gmcnoob

These electrical issues are driving me nuts so whenever my new tires finally come in I think I'll just have the mechanic figure it out. I have attached another picture of the rear wiring after removing the electrical tape. All lights are getting power and everything seems to be going to the right place. Picture 1 is where the main wire splits at the rear. Picture 2 shows where the wires were messed with by the previous owner. Any thoughts?

On to the next thing.... In the meantime I will start on some interior renovations. I was thinking about using Dupli-color to renew the door panels in black. The old faded mahogany color looks terrible. Has anyone used this product? It says you can use it on fabric, carpets and vinyl.

i'd try to clean those blue connectors right out,confirm that there is no black wire stuck in with the brown.
if you unplug the firewall plug you could run tests from there.