Hello,
Please note that the voltage regulator is part of the alternator. A new alternator will come with the voltage regulator built in.
This could be a wiring issue. You could have a short or a bad ground in the charging system harness.
It can also be a burn fusible link. This vehicle has a 10-gauge fusible link for the alternator. It is located in under the dash fuse box.
https://www.2carpros.com/articles/how-to-check-wiring
I have attached the wiring schematics for your reference.
Please let me know if you have any questions.
Thank you.
Image (Click to make bigger)
Wednesday, October 27th, 2021 AT 10:09 PM