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In a 1988 Chevrolet S10, the speedometer typically uses a mechanical speed sensor that operates based on a flexible, spinning cable connected to the transmission. As the vehicle moves, the transmission turns the cable, which spins a magnet inside the speedometer head. This magnetic field induces an electrical current in a coil, causing the needle on the speedometer to move and display the vehicle's speed. The faster the vehicle travels, the faster the cable spins, resulting in a higher speed reading.

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6mo ago

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