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Q: interior and exterior lights flicker and now car wont start on 2007 Ford Mustang

the flickering has been going on for about 2 weeks it started fine yesterday morning now it just clicks
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Seems like you have had a progressing charging system problem...such as a failed alternator. The voltage regulator is integral to the alternator as well. Fully charge your battery and have your charging system tested. Make sure the wiring connector at the alternator is also intact.

Good luck.
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