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2013 Chevrolet Silverado 1500 5.3 electrical problem?

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Old 01-12-2021, 08:28 PM
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4 year old battery???
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Old 01-12-2021, 09:30 PM
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Yes 2017 was the last time I remember replacing the battery.
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Old 01-12-2021, 09:32 PM
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Battery voltage is at 12.24 volts when the truck is off. I have not gotten it tested yet.
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Old 01-12-2021, 10:04 PM
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Yes get it load tested as these were subject to frequent battery run down issues.
There were also major issues regarding the active fuel management system with lawsuits involved.
This site is very interesting & GM may have a known issue listing regarding stalling or engine cut outs.
https://raybuck.com/common-issues-wi...2013-gm-trucks
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Old 01-14-2021, 06:58 PM
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Battery tested good, but I am going to get the alternator tested to make sure it’* still good.
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Old 01-14-2021, 09:22 PM
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You must have bought a good battery if it'* still holding at 4 years old.
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Old 01-25-2021, 03:52 PM
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the alternator had a bad diode sending ac current through the system
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Old 01-25-2021, 04:05 PM
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Ya nothing like a bad alt /diode to cause issues.. Is everything ok now?
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Old 01-25-2021, 04:46 PM
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Were the lights oscillating? That'* a sure sign of AC ripple.
Last edited by carfixer007; 01-25-2021 at 04:46 PM. Reason: add
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Old 01-25-2021, 08:47 PM
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It runs perfectly now
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