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2018 Sierra 1500

Tyler Roderick

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Tyler Roderick New Member

Tyler Roderick

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Posted

2018 GMC Sierra 109000 Miles.  All symptoms of a dead battery. Tested battery fine.  Tested alternator, fine.  Starter read low amps?  But truck would jumpstart.  Now when trying to jump. Voltage meter in dash doesn't even hit 14 v when hooked to another running car 

 

JimCost2014 Senior Enthusiast

JimCost2014

Posted
Posted
On 5/1/2020 at 5:30 AM, Tyler Roderick said:

2018 GMC Sierra 109000 Miles.  All symptoms of a dead battery. Tested battery fine.  Tested alternator, fine.  Starter read low amps?  But truck would jumpstart.  Now when trying to jump. Voltage meter in dash doesn't even hit 14 v when hooked to another running car 

 

Welcome to the site.

 

Who tested your battery? Factory batteries have a very short life span, and you have quite a few miles for a 3 model year truck, I would replace it just to be safe, otherwise you are going to experience a lot of odd electrical things going forward.

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