- AutoZone's Fix Finder Accuracy: AutoZone's diagnostic tool, Fix Finder, is generally reliable for identifying basic issues, such as your P0301 code, which indicates a misfire in cylinder 1. This can indeed be due to faulty ignition coils or spark plugs.
- Mileage and Part Failure: While it's true that ignition components often last beyond 58,000 miles, early failure isn't unheard of. Various factors like driving habits and environmental conditions can accelerate wear.
- Mechanic's Caution: The mechanic's advice to double-check isn't baseless. Sometimes, a code like P0301 can be triggered by other issues, not just the coils or spark plugs. A professional diagnostic can pinpoint the exact cause.
- Financial Considerations: Understandably, you're worried about costs. If you're skilled enough, as you mentioned changing brake pads and rotors yourself, consider replacing the ignition coil and spark plug for the cylinder indicated by the code. This could be a more economical first step.
- Seeking Second Opinions: If you decide to consult a mechanic, choose one with good reviews and transparent pricing. Some might even deduct the diagnostic fee from the repair cost if you proceed with them.
- Personal Diagnostic Tools: Investing in a basic OBD2 scanner could be beneficial for future issues. It won't provide detailed solutions but can offer insight into what's going wrong.
- Warranty Check: Lastly, check if your issue might still be covered under Hyundai's warranty, as mentioned by one of the Reddit users.
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