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Charging system not operating properly

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Old Jul 23, 2021 | 11:16 PM
  #21  
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Just old and brittle. You could just replace the solenoid but it looks like a complete new starter isn't a bad idea.
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Old Jul 24, 2021 | 08:05 AM
  #22  
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I would replace the starter as well, also buy a heat shield blanket for the new starter since the car has headers, they will cook a starter and solenoid in no time flat.
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Old Jul 25, 2021 | 02:52 PM
  #23  
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Originally Posted by lionelhutz
Just old and brittle. You could just replace the solenoid but it looks like a complete new starter isn't a bad idea.
Originally Posted by mmartinez
I would replace the starter as well, also buy a heat shield blanket for the new starter since the car has headers, they will cook a starter and solenoid in no time flat.
Thank you I just purchased the Bosch part number SR8581N from rock auto, I will update once arrived and installed.
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Old Jul 29, 2021 | 03:08 PM
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New starter fixed the problem ! As in my above pictures the connection point on the solenoid broke off So I’m assuming it has been worn for awhile causing a bad connection and finally snapped when I started removing the starter. Below are all the things I checked

alternator, harness, fusible links, battery all which seem to be good and passed various tests

below are pics of my gauge reading , I’m curious on the 2nd picture is it normal to drop to that level after some time ?

When I initially started the car with new starter

After driving on highway for about 20 mins, seemed to stabilize here
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Old Jul 29, 2021 | 03:57 PM
  #25  
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I wouldn't expect that. Mine is usually around 14V on the highway.
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Old Jul 29, 2021 | 04:04 PM
  #26  
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Lower than I'd like to see. Test your battery. Put a voltmeter on the terminals when the car is off. Anything over 12V is good. Also, take that wonky mechanic crap off your alternator wiring. Then report back.
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Old Jul 29, 2021 | 06:11 PM
  #27  
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Originally Posted by Pb82 Ronin
Lower than I'd like to see. Test your battery. Put a voltmeter on the terminals when the car is off. Anything over 12V is good. Also, take that wonky mechanic crap off your alternator wiring. Then report back.
Originally Posted by lionelhutz
I wouldn't expect that. Mine is usually around 14V on the highway.
battery read around 12.34 earlier, and yes I took the wiring off prior to installing the new starter lol
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Old Jul 29, 2021 | 07:03 PM
  #28  
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Originally Posted by mmartinez
Could very well be the alternator wire connection at the starter solenoid, also best to check voltage with a DVM across the battery terminals.
Remove the B+ wire to the starter and sand the terminals with emery cloth, apply dielectric grease and tighten. Also, on my Corvette, I ran a #6 guage wire from the B+ alternator terminal directly to the positive battery terminal with a 200 amp fuse link in line. This gives another path for the alternator to charge as the one going to the starter, then alternator is pretty thin and susceptable to high resistance. Rout the #6 wire carefully around back of intake. I covered the wire also with the plastic corrugated wire cover available at Harbor Freight. I'm sure this will be slammed by readers on here, but it worked great for me. Good luck!
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Old Jul 29, 2021 | 09:43 PM
  #29  
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I didn't think to suggest it, but check the voltage between the alternator output post and the battery positive terminal again.
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