The vehicle may lose vehicle speed signal, which can affect speedometer operation and transmission shift quality. Most often the Vehicle Speed Sensor is faulty, however, at times, the driven gear inside the transmission is at fault. Replace the Vehicle Speed sensor and inspect the driven gear upon sensor removal.
Speedometer Operation Affected and Poor Transmission Shift Quality on Mercury Topaz
Average mileage: 150,043 (150,043–150,043)
7 people reported this problem
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Speedometer just went dead (while driving up a hill, it just ticked and died), and I'm guessing the problem has something to do with the vehicle speed sensor.How much of a repair would this approximately cost?
Replaced the speed sensor, but the gears still will not shift and speedometer doesn't work.