MediaBrewer

Already got the refund & buying a new alternator from AUTOZONE tonight

2010 DJ, 76K mi, 2.4 FWD, - My alternator bearing went about 5 months ago and I bought a rebuilt OEM replacement online Amazon. Got it and installed with new belt and all was well for 3 months. I started getting the same intermittent start issue that ALL JOURNEY owners seem to get and it turns out my lead to the starter solenoid was corroded so I fixed that and it stopped. Another month goes and the battery warning light comes on, I get car home and test and it APPEARS to have only 12V across the terminals while running. I am not 100% sure because I had to test across the jumper terminal and I was thinking that might not give me an accurate reading. Anyway I put car on trickle charger overnight so I can drive the 4 miles to work and back the next day waiting for new alternator to arrive. The battery did NOT discharge at all by the end of the driving, I tested it and it was at full amps and volts. call and order the first replacement alternator and get that 2 days later (Thanks Amazon Prime!) put in new belt too and hook up and all is right with the world. So I thought. A month later i get the SAME battery warning light again! I test the battery again and full up and I drive that DJ for a solid week with NO PROBLEM! The battery is fully charged! Because its 4 months old I call Prime and get a free replacement alternator again in 2 days! (woo hoo) and installed that one WITH A BRAND NEW HEAVY DUTY BATTERY - so now I have brand new battery, brand new alternator. There was no problem I could test with the old alternator. 2 WEEKS later the battery light comes on gain! !!!! Now there is whole new electrical charging system with this same issue. Weird thing is that if I take off the small field sensor wire for awhile, even now, the battery warning light does not come back on right away. Sometimes takes a half hour or more! Other times it comes on right when I start the car. I tried looking to see if the wires were damaged somehow but I can not see any issue with that connector or leads but it seems to be every time I fiddle with the wires the light does not come on again right away. This is absolutely insane, does ANYONE have any idea what the ghost is in the machine????