Why does my alternator's external voltage regulator keep failing?
It's a 94 thunderbird 3.8. I've replaced the alternator 4 times within 3 months from the regulator failing. When I replaced this it has always been with a brand new alternator and a fully charged brand new battery and it still kills the regulator. What
First, power wash your entire engine bay. Many faults like this are traceable to the usage of road salt from the winter. There is a chemcial reaction taking place under the hood. Make sure that your alternator is grounding, 100%. Also, remove your battery