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For automatic transmission 2002 Jetta TDI, the speed sensor is easy to replace. The symptom of bad speed sensor is the speedo stops working (so you want know the speed of the car while driving). The sensor is located on the transmission, near drive flanges/firewall. Disconnect electrical connector. With hand try to rotate (anticlockwise) the speed to remove it. If you are not able to rotate, use 17mm deep socket, the one used to remove the diesel injectors on 1985-92 diesel vws. After removing it, look underneath the sensor for a shaft. Turn the shaft and see if it cause the dash speedo needle to move or rotate. If it does, that means that the sensor is ok and the portion going inside the transmission that has gears is bad. You can remove that portion with an open end wrench and replace with a new one

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11y ago
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11y ago

cranksensor location

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Q: How do you change the speed sensor on a 2002 vw jetta?
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