How do you locate and install a voltage regulator on a 1984 Olds Cutlass Supreme?

: It is located inside the alternator. Replacing it requires the use of a soldering iron. You have to remove the housing bolts on the alternator when it is off the vehicle. Then, there is a plastic cover over where the 4 wires for the voltage regulator is soldered in. Heat the connections with the soldering iron, and use a flat screwdriver to separate them. If I remember correctly, there are 2 small screws that hold the voltage regulator in. Installing the new regulator is reverse of removal. You will also need a small wire or Allen wrench to hold the brushes in while putting the housing back together.

When separating the housing, pay attention to the alignment of the two halves.