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Electrical issues surging at idle

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Old Nov 30, 2018 | 08:41 AM
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Default Electrical issues surging at idle

Electrical issues and now surging at idle.

Morning gentlemen newbie here having an issue with my 2010 F159 4.6 L. Battery light came on several months ago so I swap the battery out truck was good . Yesterday same issue had the alternator tested and replaced as well as the battery ( under warranty ) truck is charging or seems to be battery light came back on an now I noticed the truck has a small surge at idle could this be a grounding issue all visual inspections of the connections are clear of corrosion and tight. Any knowledge of this issue is greatly appreciated.
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Old Nov 30, 2018 | 12:20 PM
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could this be a grounding issue
it could be but sounds like another alternator issue
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Old Nov 30, 2018 | 06:26 PM
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That’s what I’m thinking is well pulling it off tonight in re-testing it.
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Old Nov 30, 2018 | 07:07 PM
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let me know what you find out
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Old Dec 3, 2018 | 07:40 PM
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The new alternator was bad. I swapped it out for another new one and good to go.
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