Anyone who has worked with electrical will tell you that if you don’t know what you are doing, then don’t. It is very easy to mess something up with doing wiring. I would advise everyone to take a class on automotive electrical/electronics, (Yes, they are different things). Even if it is at the local community college, you will learn the basics to help you solve any problems.
That’s exactly what I did. And that is the reason our Stang is running right now. After a little bit of know how and a wee bit of luck, I was able to fix the electrical bug that was in our Stang. The problem was, as you may have read before, a bad alternator. The thing to remember is while alternators do “go bad” sometimes, more often than not something else causes it to over work and die. The second was the case with our ’86 Mustang.
So after doing a few tests on some of the systems on the car the problem was traced to the fan and water pump circuits. With both of them drawing over 3 volts, something was shorted and the question wasn’t what is, it was where. So after finding a short in one of the wires and a quick repair job it was time to try it again. And work it did, this time the two circuits only dropping about a volt or so. So now it looks like this beast is ready to go to the track. I know I can’t wait, cause I’m the one that will be driving it.