Battery Overheating?

[Tim_MN]

I would suspect the alternator. Low rpm's results in low charging. The typical alternator does not reach full output until about 1500-200 rpm's. Low output from the alternator depletes the battery and the PCM shuts down. The PCM requires proper voltage to operate.

I would have the alternator rebuilt locally with German or Japanese parts. Auto Parts store refurbished alternators are not rebuilt, and they have a substantial percentage of defective workmanship, and they often suffer from early failure. Cheap parts are cheap for reason.

The only charging issues I have had from several high mileage 1997-2000 XJ's I have owned is faulty alternators, and crappy batteries that only last a few years. In the olden days, batteries lasted longer.

[Weasel]

Thanks, I forgot about this again until it finally did it to me in town at O-Rileys parking lot.

I do have a couple places that do rebuilds locally but not sure what parts they use. I do see a couple places online that seem to have "upgrades".

DB Alternator
JS Alternator
Mech Man
Power Bastards
Pure Power

any recommendations?

[Tim_MN]

Mech Man and Mean Green have been in business for along time. I would check Premier Power Welder and see if their alternators are sold separately.

My local alternator shop will rewind an alternator for higher output.

[Weasel]

Originally Posted by Tim_MN

Mech Man and Mean Green have been in business for along time. I would check Premier Power Welder and see if their alternators are sold separately.

My local alternator shop will rewind an alternator for higher output.

PPW does but they run $735 bucks

[XJ Monkey]

Is this problem solved?

Maybe I don't know what I'm talking about, but I don't think a normal good battery magically recovers from 9v back to 12v just by sitting. After all you have been through at this point, I would just try a new battery.