What will happen if you hook up jumper cables wrong What Damage is Caused by Incorrectly Hooking Up the Battery Charger Cables?

What will happen if you hook up jumper cables wrong, what happens if you connect jumper cables incorrectly?

Submit a new failure picture. You could have fried your ecu. After the fire was out, the Jeep no longer turned over.

Re: What happens if you connect jumper cables incorrectly?

Actually they are all correct and then some. But that might not be true.

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You are trying to force the electrons to go the wrong direction. If the voltage to the gas valve is erratic, changes several times in 5 seconds what s wrong? I don't know much about engines, but I do understand a bit of electronics, and was wondering if it was possible that he created a huge power surge in the system. Also, there is probably a battery cable which runs near or directly to this fuse box.

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Im not an expert, so take my advice with a grain of salt, but I think I can tackle this question: The week's top questions and answers Important community announcements Questions that need answers. By subscribing, you agree to the privacy policy and terms of service. To submit your questions or ideas, or to simply learn more about It Still Runs, contact us.

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Easiest way to tell if an electrical component is damaged is with a charge tester. Usually not as dramatic, but shit can fuck up why we don't have an idiot proof connector for this, I have no idea. A single diode will clamp the reverse voltage to 0. Can hooking up jumper cables incorrectly cause one to have to replace the throttle body? You could partially solve that problem by putting another diode across the resistor, but then you might as well delete the resistor and the original diode altogether and just have the one diode that simply blocks reverse power.

Battery Damage

But the only real damage is maybe a blown fuse. If one connects a strong battery to a vehicle's electrical system with reversed polarity, nearly-unlimited current will flow through the alternator until it blows a fuse or fusible link, melts a wire or diode, or does something else catastrophic.

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