Vehicle Speed Sensors

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What is a Vehicle Speed Sensor?

A Vehicle Speed Sensor (VSS) is a device that measures the speed of the vehicle, typically in RPMs (Revolutions Per Minute). It is located in the transmission, and is usually connected to the vehicle’s speedometer or to the engine’s control unit.

How do I know if my Vehicle Speed Sensor is faulty?

If your Vehicle Speed Sensor is faulty, you may experience several symptoms such as:

  1. Erratic or jumping speedometer readings
  2. Unusual noises or vibrations coming from the transmission
  3. Difficulty shifting gears or the transmission slipping
  4. Check engine light illuminated


Can a faulty Vehicle Speed Sensor cause damage?

Yes, a faulty Vehicle Speed Sensor can cause damage to the transmission, engine, and other components due to incorrect readings.

How do I replace a Vehicle Speed Sensor?

Replacing a Vehicle Speed Sensor is a relatively simple process.

  1. Disconnect the negative battery cable
  2. Locate the Vehicle Speed Sensor and disconnect it
  3. Remove the old Vehicle Speed Sensor
  4. Install the new Vehicle Speed Sensor
  5. Reconnect the negative battery cable


How often should I inspect my Vehicle Speed Sensor?

It is recommended that you inspect your Vehicle Speed Sensor every 6 months or 6,000 miles to ensure that it is functioning properly.