So I found out I had a bad alternator in my 99 XJ and replaced it this weekend. After doing so, I seem to be noticing something, but am not sure if itÆs something I THINK I am noticing or something that I ACTUALLY am noticing. So I figured I would get your thoughts on if it is even possible.

So the jeep now feels like itÆs idling a little smoother, and feels like it transitions from between idle and off idle smoother. And when driving previous if I shifted early I often heard what sounded like a couple pings, like the fuel grade was not correct, right when I let the clutch out on the higher gear. Well that seems to have stopped too.

Like I said I donÆt know if any of this is real or just something I THINK I am noticing. The only rational I have is I know the old alternator had a bad diode, and it was putting out lower voltage, and I assume a lower current as well. Do you think the bad alternator that was still limping along, just at a diminished state, could have been caused any of what I think I felt/ heard? I am thinking the decreased output could have affected possibly affected the spark strength, and possibly contributed to the issues, but like I said, what do you all think?

Thanks,

Sean