Originally Posted by MD3K

Update,
After driving around a little the battery light will momentarily flash but does not stay on. I have done did some more testing and with the car cranked the alternator would charge for a few minutes then cut off... battery voltage would drop below 11v and alternator would not come back on... took battery to advance for testing and tested to have a bad cell. So, I put a new battery in it, and alternator works but battery light still intermittenlty flashing. I took loose the connections in the splice pack and behind glovebox and soldered together to eliminate possibility of bad connections there, and also added an extra ground wire to the alternator body from the frame ( thinking maybe i had a poor ground connection as the top alternator bolt was crossthreaded when i first started this whole deal... I also ran wires from ground on body and alternator output bolt and alternator IG wire so that i could hook up two voltmeters at the same time to see voltage on the alt output and IG input while inside the car with it running... result is that alt output was 14.4 to 14.9 while idling and up to 2000 rpm. I was able to get the battery light to flash momentarily a couple times and noticed that is flashed only when voltage jumped over 15v - up to 15.5 one of the times. Meanwhile the voltage on the IG wire remained a steady 13 volts the entire time (second voltmeter only reads whole numbers). This leads me to believe that alt is overcharging intemittently and causing battery light to flash when that happens? Would there be anything else that would cause this other than alternator having faulty voltage reg, or am I even on the right track?