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2007 chevy
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61 Posts
Discussion Starter #1
My TBSS seems like the battery is weak when starting. How do you know when it is the battery and when it is the alternator that needs replacement? THX.
 

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2007 chevy trailblazer_ss_3ss
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16 Posts
Take it to Autozone and have them test the battery, but I'd bet it is the culprit. This Texas heat will kill a battery if it's even remotely close to end of life.
 
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