Bugout 1 Posted February 6, 2023 Share Posted February 6, 2023 1988 Comanche. New battery, new cables, new alternator, still not charging battery. Voltage regulator maybe? Link to comment Share on other sites More sharing options...
jpnjake Posted February 6, 2023 Share Posted February 6, 2023 How is the serpentine belt, is it tight enough or worn out. Link to comment Share on other sites More sharing options...
Bugout 1 Posted February 6, 2023 Author Share Posted February 6, 2023 Belt is new and tight. Link to comment Share on other sites More sharing options...
gogmorgo Posted February 6, 2023 Share Posted February 6, 2023 Are there fuses for the alt like the HO has? Link to comment Share on other sites More sharing options...
Bugout 1 Posted February 7, 2023 Author Share Posted February 7, 2023 22 hours ago, gogmorgo said: Are there fuses for the alt like the HO has? I don't think so. I'm stumped. Maybe I got a bad alternator from AutoZone. Link to comment Share on other sites More sharing options...
gogmorgo Posted February 7, 2023 Share Posted February 7, 2023 The HO has a couple alt fuses, plus one labelled ECM that protects the regulator circuitry. I’ve been burnt by that one before. But I don’t know how the Renix is set up. Link to comment Share on other sites More sharing options...
Bugout 1 Posted April 1, 2023 Author Share Posted April 1, 2023 Could it be the starter relay? Link to comment Share on other sites More sharing options...
jdog Posted April 2, 2023 Share Posted April 2, 2023 Did you do a cluster swap lately? How do you know it's not charging? Link to comment Share on other sites More sharing options...
jeff351 Posted April 2, 2023 Share Posted April 2, 2023 check your fuses. None of mine were blown, but corrosion had built up on them to the point some were no longer conductive. I had the same problem as you and it was remedied by pulling all of them out and cleaning with a wire brush. I think the 7.5a fuse was the culprit. Link to comment Share on other sites More sharing options...
Bugout 1 Posted April 2, 2023 Author Share Posted April 2, 2023 11 hours ago, jdog said: Did you do a cluster swap lately? How do you know it's not charging? As I drive the gauge reads lower and lower, you can watch it drain. I checked the voltage before and after a drive and it was significantly lower. Link to comment Share on other sites More sharing options...
Bugout 1 Posted April 2, 2023 Author Share Posted April 2, 2023 1 minute ago, Bugout 1 said: As I drive the gauge reads lower and lower, you can watch it drain. I checked the voltage before and after a drive and it was significantly lower. And when I put the charger on it it reads 50%. I leave the trickle charger on it overnight, it reads 100%, I drive it and it drops again. Link to comment Share on other sites More sharing options...
jdog Posted April 2, 2023 Share Posted April 2, 2023 Have you put a dvom on it and seen what it is doing with the engine running? Have you tested the alt? Just because it's new doesn't mean it's good Link to comment Share on other sites More sharing options...
cruiser54 Posted April 3, 2023 Share Posted April 3, 2023 Autozone....... Link to comment Share on other sites More sharing options...
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