Low voltage

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Sygmadriver03, Nov 25, 2023.

  1. Sygmadriver03

    Sygmadriver03 Bobtail Member

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    May 11, 2016
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    Truck started at 13.4 volt. Got going down the road & is now 11.7-12.5. Pulled over check belt & connections seem fine. Multmeter reading 13.7 at alternator. Dash start showing 13.4. Get going again. Start reading 11.8. Pull over & check alternator is 13.7. Batteries all tight. Am I missing something? I'm 300 miles in my trip with 300 more to go. 07 freightliner columbia with 60 series 14l.
     
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  3. xsetra

    xsetra Road Train Member

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