charging system

my gen light on my 96 cherokee 2.5ltr./5speed keeps coming on randomly cycleing the key switch it goes out and sometimes returns,one night the batt ran flat and the next day was fine, the alt. must be fine because it charges fine when the gen lights out the regulator? loose connection?any imput anyone please help its driving me nuts I dont dare to venture to far...

Welcome to AF lobshtahman :smile:

First thing to do is check for codes by cycling the ignition key on/off 3 times and leave it on the 4th time. You should get the check engine lite to flash and or the code to come up in the odometer display.

The flashes are 2 digit codes with short pauses between the two digits and longer pauses before the subsequent code is flashed. The last code is the "55" or end of codes....

The voltage regulator is in the PCM - computer and not replaceable seperatly.(bummer) but likely is not the cause of your problem.

Codes first and then someone will have a direction to head in to help you.

At the same time, hows the battery terminals for corosion?? Take the battery posts off and clean them up - just good practice to do this from time to time. This might fix you up by it's self. - AND -

How old is your battery??

JD