Generator light staying on
Fired up My '59 today, so I could see how it moved back and forth thru the gears. The generator light is staying on while the engine is running. What is the problem,and how can I fix it?
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unplug it...kidding
sounds like low volt/amps from battery-is it through all RPMs? do you have a volt or amp meter in truck? someone else will be along to tell you how to test without these if you do not have in truck Joe
Originally Posted by 78 & 87 Super Cab
(Post 14526183)
Fired up My '59 today, so I could see how it moved back and forth thru the gears. The generator light is staying on while the engine is running. What is the problem,and how can I fix it?
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Originally Posted by Maltman
(Post 14526366)
unplug it...kidding
sounds like low volt/amps from battery-is it through all RPMs? do you have a volt or amp meter in truck? someone else will be along to tell you how to test without these if you do not have in truck Joe |
Check all the connections and look for broken wires. Not uncommon for wires to dry out and crack on these old vehicles.
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Originally Posted by Damifiknow
(Post 14526649)
Check all the connections and look for broken wires. Not uncommon for wires to dry out and crack on these old vehicles.
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Do you know that the generator and regulator was good before you worked on it? After removing and repairing the wire ends did you polarize the generator?
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Originally Posted by hiball3985
(Post 14527815)
Do you know that the generator and regulator was good before you worked on it? After removing and repairing the wire ends did you polarize the generator?
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On a Ford, disconnect the Field and Batt wires from the terminals at the regulator and momentarily touch them together. You should see a healthy blue spark. That's it.
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Originally Posted by Tedster9
(Post 14527886)
On a Ford, disconnect the Field and Batt wires from the terminals at the regulator and momentarily touch them together. You should see a healthy blue spark. That's it.
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Yes, engine OFF. Doubt this is the problem, though?
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Originally Posted by Tedster9
(Post 14528320)
Yes, engine OFF. Doubt this is the problem, though?
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I have the same issue, but my truck was changed to an alternator. Not sure when, but my light also stays on. Is that normal? What can I do to fix?
Thanks in advance. |
Probably better off starting a new thread, two or more issues and different systems might get confusing.
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Never say never, but polarization is normally only required if the generator itself has been disassembled or maybe if it has sat for a very long time.
Simply disconnecting the battery, or replacing a regulator, isn't cause for that. It's important to use the technique for the type of generator involved. Ford is different than Chevy, etc. The method outlined is from the 64 Ford Truck shop manual. It goes on to warn that other methods may burn contact points in the regulator. Sent from my iPhone using IB AutoGroup |
Originally Posted by Tedster9
(Post 14529107)
Never say never, but polarization is normally only required if the generator itself has been disassembled or maybe if it has sat for a very long time.
Simply disconnecting the battery, or replacing a regulator, isn't cause for that. It's important to use the technique for the type of generator involved. Ford is different than Chevy, etc. The method outlined is from the 64 Ford Truck shop manual. It goes on to warn that other methods may burn contact points in the regulator. Sent from my iPhone using IB AutoGroup |
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