"Peter253" wrote in
oups.com:

When I hook up the tester to the
regulater, I do not read anything. Does this mean I have a bad voltage
regulator? Does anyone have a method of isolating if the issue is with
the regulator or the alternator?

You don't read anything from lead to lead or lead to ground or where? What
kind of regulator is it? Do you know which of the leads on the regulator
is battery, field, ground, etc.?

If there is no voltages to the regulator, you have a wiring problem. The
new regulator won't have operating voltages, either.

--
Larry