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Can the rear wheel speed sensor of the Santa Fe be replaced by yourself?

2 Answers

Carter

07/29/25 11:06am

Can the rear wheel speed sensor of the Santa Fe be replaced by yourself. How the wheel speed sensor works: Most systems use inductive sensors to monitor vehicle speed. The ABS sensor interacts with a toothed ring that rotates synchronously with the wheel, outputting a set of quasi-sinusoidal AC signals whose frequency and amplitude are related to the wheel speed. This output signal is transmitted to the ABS control unit to achieve real-time monitoring of wheel speed. Effects of a damaged wheel speed sensor: Not only will it cause excessive emissions, but it will also worsen the engine's operating conditions, leading to symptoms such as stalling at idle, inaccurate engine operation, and reduced power.

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StAndrew

08/13/25 5:28pm

I often do my own car repairs, and the rear wheel speed sensor on the Santa Fe can indeed be replaced by yourself. You'll need some basic tools: a good jack or stands to safely lift the rear wheel, a set of socket wrenches (usually 10mm), and a new sensor. First, buy an OEM or compatible part online, which costs around 100-200 yuan. When operating, start by engaging the handbrake and placing wheel chocks, then use the jack to lift the car and support the rear axle area with stands to ensure stability. After removing the rear wheel tire, you'll see the sensor next to the hub—a small black component connected to a wiring harness. Unscrew the mounting bolt and carefully remove the old part, being careful not to pull on the wires to avoid damaging the connector. When installing the new sensor, thoroughly clean the surface and the hub mounting point, then tighten the bolt (don’t over-tighten; check the manual for torque specs) and reconnect the plug. After reinstalling the wheel, lower the car and start the engine to test if the ABS light turns off. The whole process takes about 40 minutes and is simple enough to save on labor costs, but if you're a beginner, it's recommended to watch a model-specific video online for details first.

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