Symptoms varied...check engine light came on (i didn't read the code), my front seat refused to power forward, the car had a hard start situation and the battery light flicked on/off.
Regulator: $57 delivered, better than a $200 alternator
Totally disconnect the battery. Remove the coolant overflow and the power steering reservoir (no need to disconnect the hoses). Pull the computer vent tube off and pull the power steering pump, still don't need to disconnect the hose, just move it aside. I believe there are 4 bolts that hold the alternator...they need to be removed and that is the biggest pain of this job. You will need a couple different extensions to reach them.
You are basically clearing a path to twist the alternator to remove the regulator, not to completely remove the alternator from the engine bay.
Here is the alternator ready to be worked on. (Pay no attention to the crowbar, LOL)
Here is a close up with the 2 nuts removed holding the regulator on.
Remove these 2 screws and off comes the regulator.
Old vs new.
Here is the issue...
Make sure to clean this contact before reassembly.