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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

Charging System

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Old Nov 1, 2006 | 09:20 PM
  #1  
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1987_f150
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From: State College, PA
Smile Charging System

Just wondering if it is normal for my lights to dim down when the truck is idling.

I had my battery and alternator check and both were good.
 
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Old Nov 1, 2006 | 11:56 PM
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Mil1ion
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Yes that's normal.

The VR doesn't usually kick in until 850-900 rpm
 
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Old Nov 2, 2006 | 07:17 PM
  #3  
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1987_f150
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my battery must be bad...try to use my battery to start our lawn mower...now my truck wont start =)

I did have the truck running while trying to start the mower.
 
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