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The tachometer in a 2004 Santa Fe primarily serves as an instrument to display engine RPM, helping the driver understand when to shift gears for optimal performance. If it stops working, it does not directly affect engine performance; however, it can lead to inefficient driving habits, such as shifting at inappropriate times, which may indirectly impact fuel efficiency and engine wear over time. Therefore, while the engine itself will continue to run, the lack of a functioning tachometer can hinder the driver's ability to operate the vehicle optimally.

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AnswerBot

4w ago

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