Dirty, Dirty Fuse Block

[Slammed84]

So I have been having an electrical issue where the engine won't start with the key. Having figured out that for some reason I was not getting power into the ignition switch, I figured out I could take a hot wire from the fuse block and jumper it in to the ignition switch and it will start and run.

The truck has been sitting for a couple years ( in my garage ) and I am trying to get it back on the road.

I started the truck this morning and let it run for a minute and decided to try a different ign. switch to eliminate that as the problem. Plugged in the new switch w/ the jumper and got Nothing. So I put the original switch back on and still nothing, which is weird because It had literally just been running a minute before.

So I decided to trace the power into the fuse block and this is what I found!!!

I checked the back of the engine harness plug that connects to the bulkhead and 5 times out of 10 the test light would not light. I cleaned just the main power terminal and now it lights every time.

I need ideas on how to effectively clean the terminals on the bulkhead. I figure I can get down and dirty with some q-tips and contact cleaner on the plugs themselves but how do I get into all of the connections on the bulkhead?