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Sounds like you are reversing the cables.

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13y ago
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Q: Why when you connect the battery it makes sparks and it starts to burn the post of the battery?
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What makes it spark you have checked the battery battery cables and starter but can not hook up cables without major sparks?

you may have a dead battery of a shorted wire or component. be sure to connect positive to positive and negative to negative. disconnect one component at a time to find short. check that the exaust manifold isn't touching the starter


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If your battery is good but your alternator is bad would you still be able to start your car?

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