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Q: I need to replace the driver's side headlight

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The driver's side headlight needs to be replaced. I don't know if it is the bulb, igniter, or ballast.

A: When a single headlight fails, it's bes...

When a single headlight fails, it's best to replace both sides at the same time, something a mechanic from YourMechanic would be more than happy to do. They can test each component individually to find the culprit.

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