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Charging problem 1984 Pickup

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Charging problem 1984 Pickup

  #1  
Old 12-27-2018, 10:48 AM
Dartman76
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Default Charging problem 1984 Pickup

I have a 1984 Pickup, 318, new alternator, new voltage regulator, new brain box, wont charge. Alternator is new and has been retested, when both field wires are attached alternator starts squealing but wont charge. Any help would be appreciated. Thanks
 
  #2  
Old 12-27-2018, 03:02 PM
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Field wires hook up correctly? Got proper belt tension? Usually, squealing is a sign of a loose belt.
 
  #3  
Old 12-27-2018, 06:24 PM
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Originally Posted by HeyYou View Post
Field wires hook up correctly? Got proper belt tension? Usually, squealing is a sign of a loose belt.
squeal goes away when one of the field wires is disconnected. Tried field wires both ways same results. Belts are not loose
 
  #4  
Old 12-27-2018, 10:29 PM
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have you hooked a multi meter to the alternator output to see what it says? if it is squealing it should be charging.
 
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Old 12-28-2018, 10:41 AM
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When you pull the field wires, there is no longer a load on the alternator, so, belt stops slipping.......
 
  #6  
Old 01-02-2019, 03:58 PM
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Belts are not slipping, still doesnt charge
 
  #7  
Old 01-02-2019, 05:56 PM
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did you test the voltage output at the alternator?
 
  #8  
Old 01-02-2019, 06:06 PM
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Testing alternator only shows battery voltage, its brand new and has been retested twice to ensure that it works.Voltage gauge doesnt even show a discharge or charge when vehicle is running
 
  #9  
Old 01-02-2019, 06:52 PM
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If you are only seeing battery voltage at the alternator, with the engine running, the alternator is not working. If the alternator works fine on someones test stand, then the regulator, or wiring becomes the next suspects.
 
  #10  
Old 01-02-2019, 08:54 PM
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it really sounds like a bad alternator if it the belts squeals when you hook up the field wires but no voltage comes out . i would agree with heyyou to check wiring and maybe try changing the voltage regulator, new one are more prone to being junk and failing
 

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