I have a 98 TJ with the 4.0.
Been having issues with the charging system, voltage suddenly drops to zero, and check gauges light comes on, in addition to sporadic starting. Got battery and alternator tested, battery was bad (replaced it), alternator was good but voltage regulator was bad.
After doing some research, saw that voltage regulator is built into PCM (Dumb plan Chrysler).
Has anyone been able to successfully repair their PCM, and what steps did you take?
I am a college student and the cost of repairing it myself seems a lot more appealing, but what are some good sources for remanufactured PCMs?