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In a 2003 Jeep Liberty, the speed sensor can be found at the transmission output shaft. This sensor communicates with the CPU to track how many times the shaft rotates, determining the car's speed. The transmission uses this information to shift gears effectively. If the sensor malfunctions, the transmission may delay shifting, shift roughly, or not shift at all. Replacing the speed sensor costs between $20 to $40, making it an affordable repair that is crucial for the proper functioning of the transmission. Ignoring a faulty speed sensor can damage the transmission, so it should be addressed promptly.
The speed sensor for the 2003 Jeep Liberty can be found towards the back of the transmission on the right side, close to the tail shaft, under the vehicle's hood.