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2026. 6. 30. 작업

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Ford Focus - bad starter?

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This sounds like there is an issue with the ground at the battery. Sometimes it appears there is a good connection there (especially when using side post terminals), yet there is only enough of a connection to allow the low amperage stuff to work. Then, when you turn the key, the starter starts to engage, but then continuity is lost because there is not enough of a connection at the terminal to support the amperage load. I would try tightening the battery terminal to see if you can get a better connection. Don't over tighten, though, as this can strip out the threads (on a side post) or break the post clamp on a top post. Also, try cleaning the terminals could help as well.