Gary Lewis Posted November 7, 2017 Share Posted November 7, 2017 Completed, the test voltage was around 17.10, moving up down. About the same as when the regulator was plugged in. Looks like a another bad regulator. I have rechecked the wiring to the alternator and it was correct. The wire from the bat terminal on the alternator, branches at two locations between the alternator and the starter relay, this wire pass the second branch, near the starter relay got very hot. :nabble_smiley_sad:But everything has to be on hold for a week, We are heading up to Mass., for a family member's funereal. David - Sorry for your loss. Travel safely. You are in my prayers. Link to comment Share on other sites More sharing options...
PetesPonies Posted November 7, 2017 Share Posted November 7, 2017 Completed, the test voltage was around 17.10, moving up down. About the same as when the regulator was plugged in. Looks like a another bad regulator. I have rechecked the wiring to the alternator and it was correct. The wire from the bat terminal on the alternator, branches at two locations between the alternator and the starter relay, this wire pass the second branch, near the starter relay got very hot. :nabble_smiley_sad:But everything has to be on hold for a week, We are heading up to Mass., for a family member's funereal. Yikes, be safe. Things pop up when you don't expect them. Glad you seemed to nail down the problem. Link to comment Share on other sites More sharing options...
jdavidsmi Posted November 17, 2017 Author Share Posted November 17, 2017 Yikes, be safe. Things pop up when you don't expect them. Glad you seemed to nail down the problem. Thanks for the kind words and payers, got back home late Wednesday evening. Got the voltage regulator replaced, yesterday and so far all is good. Voltage stayed around 14 volts while the truck was running. And 12.5 or so with the motor off. The dash amp meter always shows a discharge. :nabble_anim_confused:But what is really a bummer is the key off short is back. Battery was dead this morning. So back to tracing wires and looking. David Link to comment Share on other sites More sharing options...
PetesPonies Posted November 17, 2017 Share Posted November 17, 2017 Thanks for the kind words and payers, got back home late Wednesday evening. Got the voltage regulator replaced, yesterday and so far all is good. Voltage stayed around 14 volts while the truck was running. And 12.5 or so with the motor off. The dash amp meter always shows a discharge. :nabble_anim_confused:But what is really a bummer is the key off short is back. Battery was dead this morning. So back to tracing wires and looking. David Unhook the alternator one night and see if the battery is still dead in the morning. Link to comment Share on other sites More sharing options...
Gary Lewis Posted November 17, 2017 Share Posted November 17, 2017 Thanks for the kind words and payers, got back home late Wednesday evening. Got the voltage regulator replaced, yesterday and so far all is good. Voltage stayed around 14 volts while the truck was running. And 12.5 or so with the motor off. The dash amp meter always shows a discharge. :nabble_anim_confused:But what is really a bummer is the key off short is back. Battery was dead this morning. So back to tracing wires and looking. David Glad you made it. And, glad the regulator is working. As for the key-off draw, pull the positive battery cable, put a trouble light from the positive post to the battery cable, and then pull all the fuses. The light should go out, indicating that whatever circuit is the problem is dead. Start replacing the fuses and when the light comes on you know which one it is. Link to comment Share on other sites More sharing options...
jdavidsmi Posted November 20, 2017 Author Share Posted November 20, 2017 Glad you made it. And, glad the regulator is working. As for the key-off draw, pull the positive battery cable, put a trouble light from the positive post to the battery cable, and then pull all the fuses. The light should go out, indicating that whatever circuit is the problem is dead. Start replacing the fuses and when the light comes on you know which one it is. Saturday when I went to look for the key off short the battery was dead again. I put the charger on it and started working on other things. pinion seal replacement, rearview mirror replacement. Once it warms up a bit I will attempt the short again. David Link to comment Share on other sites More sharing options...
Gary Lewis Posted November 20, 2017 Share Posted November 20, 2017 Saturday when I went to look for the key off short the battery was dead again. I put the charger on it and started working on other things. pinion seal replacement, rearview mirror replacement. Once it warms up a bit I will attempt the short again. David You might want to pull the positive cable to charge the battery. Link to comment Share on other sites More sharing options...
jdavidsmi Posted November 20, 2017 Author Share Posted November 20, 2017 You might want to pull the positive cable to charge the battery. I taken the battery completely out, charged it up over the weekend, I'm taking the battery and the alternator down to the parts house and have them tested again. want to make sure I did not damage the battery with the overcharging from the bad regulator. Link to comment Share on other sites More sharing options...
Gary Lewis Posted November 20, 2017 Share Posted November 20, 2017 I taken the battery completely out, charged it up over the weekend, I'm taking the battery and the alternator down to the parts house and have them tested again. want to make sure I did not damage the battery with the overcharging from the bad regulator. Good plan. Bad diodes could cause a drain, and you could blow diodes with the over-voltage problem. Link to comment Share on other sites More sharing options...
PetesPonies Posted November 20, 2017 Share Posted November 20, 2017 I taken the battery completely out, charged it up over the weekend, I'm taking the battery and the alternator down to the parts house and have them tested again. want to make sure I did not damage the battery with the overcharging from the bad regulator. You still didn't pull the alternator wire and let it sit over night to see if it was dead yet? right? Link to comment Share on other sites More sharing options...
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