JeepsOLot Posted April 9, 2015 Share Posted April 9, 2015 This is from mu build thread, thought I would post it here for more exposure. Got the cables replaced. Drove it around last night. Went to Advance Auto to look at some things, got into the Jeep, and it almost didn't want to start. Noticed the headlights getting dimmer, and when I put the brakes on, the dash lights would dim. Got back to the house, shut it off, and it wouldn't start (not enough juice). My question is, with the arching that went on before I changed the wires, what would have normally gone first, the alternator or the battery? In the past when the engine was running, it would run 30-40 mins, and immediately restart no problem. That makes me believe everything was fine before the arching. I'm going to first take the battery out and have it tested, and then the alternator if the battery tests good. Jerry Link to comment Share on other sites More sharing options...
mik666 Posted April 9, 2015 Share Posted April 9, 2015 have you put a volt meter on it and see if the system is charging w/ new cables? Link to comment Share on other sites More sharing options...
JeepsOLot Posted April 9, 2015 Author Share Posted April 9, 2015 Not yet, just brain storming until I get home. Think it's the alternator, as it seems the battery was working until it was discharged. With the engine running, everything should have been bright if the alternator was working. Jerry Link to comment Share on other sites More sharing options...
Jeep Driver Posted April 9, 2015 Share Posted April 9, 2015 There should be a fusible link off the alt.....check that first. Link to comment Share on other sites More sharing options...
JeepsOLot Posted April 10, 2015 Author Share Posted April 10, 2015 Checked the fusable link, it was fine. Took out the alternator, and had it tested, the internal regular and the bearings were shot got a new one, and will be installing it tomorrow. Jerry Link to comment Share on other sites More sharing options...
ScottJeep Posted April 11, 2015 Share Posted April 11, 2015 Did you replace both Positive and Negative cables? How are your connections at all ends of these cables? Clean & Shiny? Highly recommend the BWD BH315P and BH315N. (O'Reilly's is only place around me that can get them.) These are military style connectors you never dis-connect them from the battery. Your cables connect separately. (These make all these other things used by most "professional audio shops" look like a joke and at half the price.) Good cables, good connections, GOOD GROUNDS. And yes, I've spent the entire day replacing everything except these items, the cheapest parts, and then once I did watch all my problems completely vanish. Good Luck! Link to comment Share on other sites More sharing options...
JeepsOLot Posted April 13, 2015 Author Share Posted April 13, 2015 I replaced both cables. I replaced the alternator as well. When I started the truck, the battery was at 11.8 volts. as it ran, the voltage dropped to 9.4 before it leveled out. After the alternator replacement, before starting, battery was at 12.8 (charged it), with engine running, it was at 14.4/14.5. Charging now!!! Jerry Link to comment Share on other sites More sharing options...
mik666 Posted April 13, 2015 Share Posted April 13, 2015 nice! Link to comment Share on other sites More sharing options...
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