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1994.5 - 1997 7.3L Power Stroke Diesel  

alt over charging

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Old Aug 20, 2006 | 09:39 PM
  #1  
blue96psd's Avatar
blue96psd
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From: waterbury
alt over charging

jump in the truck this morning to go for a ride and i notice the bat light comes on and the gauge is pegged at 18 but only hen engine speed is above 2300 RPM below that rpm it woul be fine
 
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Old Aug 21, 2006 | 06:01 AM
  #2  
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Cuda_jim
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From: MICHIGAN
Gage may bad? Check voltage @ battery(s) with Volt meter. You may need to do 1 battery at a time.
 
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Old Aug 21, 2006 | 07:58 AM
  #3  
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1969fordguy
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From: Louisville
With a dummy light and the gauge bad, it sounds like your voltage regulator has checked out... Use a multi meter to verify the overcharging. I think the regulator is internal on our alternators. So a replacement is in your future.
 
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Old Aug 21, 2006 | 10:30 AM
  #4  
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From: SHELTON, WA
most parts stores can check em for you. pull it off takes 5 minutes. i think i paid 100 bucks for mine with a 3 year warranty from napa.
 
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