SaintsXJ

1991 4.0 High Output
so i started my jeep went to the store came out
wouldn't start got a jump took it home, next day wouldn't start got a jump but nothing starter was pulling to much power so went down and got a new starter. next day with a full charge it turned over drove it that day got it home and tryed turning it over and nothing got a optima red top and it started right up, drove it coming home started smelling "rotten eggs" got home pop the hood and battery is toast...so i take the alt out have it tested and its fine great...i think its the voltage regulator but dont know any ideas????

and i cant find the regulator i need

98Plum Crazy

The regulator is internally controlled via the pcm, i've been told you can bypass this and go with a stand alone regulator, but am not 100% on process.

greasemonky

i had something like that happen to me with an older chevy try checking your grounds first

Caish

The altenator has the regulator built in.
Just replace the altenator or take it to a stater/altenator shop and have it fixed.

SaintsXJ

i pulled the alt. and took it down it was good....it has an external regulator and i cant find the one i need anywhere
i looked and it and all the wires run to a plug on the fire wall
a green wire a green red wire a yellow wire and it looks like a ground...
i dont know if i need to replace the whole thing or just CUT AND SPLICE IT

ANY IDEAS