Alternator or VR issue?
Is this a bad alternator even though tested ok at store?
if you go again, get a copy of the test print out.
Without that we don't know what the test(s) consisted of, so can't jusdge the results.
I have removed the FLD line (Single line Alt) and grounded straight to the car firewall still getting 11.8ish at Alt Stud
See Dana's comment about the fuses in the regulator.
(you can remove cover and check those on a mechanical regualtor)
Also, to better understand why that blew the fuses, look at the sticky titled Identifying Chrysler Alternators.
Replace voltage regulator... no change in issue
That should eliminate the likely blown fuse in the VR.
- Tested Alt stud while running getting 11.8ish
- I have removed the FLD line (Single line Alt) and grounded straight to the car firewall still getting 11.8ish at Alt Stud
IF this was tested at same time as when the battery positive was 12.3 Volts, this suggests a signficant amount of resistance between the battery positive and the mainsplice, or poor grounding.
I have tested with key on Blue wire at voltage regulator and get voltage
The voltage at that terminal should be very close to the same as the supply voltage.
IF these measurements are all done at the same time, same conditions (engine running, alternator not working), this is a useful diagnostic.