Jeep Cherokee Forum - Question about charging

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Chief Gunner

10-14-2018 08:56 PM

Question about charging

I have a 1999 XJ Sprot. Over the past few days, I get the check warning light and I see that my charging system is pegged at 19 VDC. Typically, it drops beck to normal within a few minutes, but today, I had to pull over,, shut off the engine, and restart. Th alternator is rather new, but I don't think the alternator has an internal regulator. Where should I begin looking. Is there something in the PCM/ ECU that I need to look at?

mikesignal

10-14-2018 09:09 PM

Check all your connections, the grounds especially.

CR-Snow

10-14-2018 11:11 PM

I had this exact problem. New terminals and battery wires fixed mine. My terminals were clean looking but the older they are, the less likely they are going to make good connection. I’d start with terminals and cleaning all your ground points. If your cables look crappy at all, a couple folks on the board here sel kits for pretty cheap.

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