Car Parts Discount
Vehicle Speed Sensor

Aftermarket & OEM Vehicle Speed Sensor

Your vehicles speed sensor is used to regulate many essential functions on your car. So having a faulty sensor can cause quiet a number a different of problems for you and your car. Is your speedometer not working or acting erratically? Are you not able to use your cruise control? Does it seem like your transmission is hesitating to change gears? These are just some of the common problems associated with a failing sensor. Your car can have an output senor (OSS) and a input sensor (ISS), which might also be referred to as a turbine shaft speed sensor (TSS). Since the sensor is usually located on the vehicles transmission or transaxle, a bad sensor can cause symptoms related to a bad transmission, which can lead to a costly and unnecessary fix. That is why it is extremely important for your mechanic to run a full computer diagnostic test on your vehicle to ensure the correct and proper repair is done. The sensor, in some newer model cars, is sometimes a part of your vehicles ABS module so if you can't locate the sensor on your transmission the next place to look would be your anti-lock braking system.

Your vehicle's electronic control unit or module uses information from the speed sensor and other sensors on your car, to help control many important functions like the transmission shifting, your cars timing and to display how fast you are going. It accomplishes this through a gear on the shaft of the speed sensor that spins and records how fast the crankshaft is spinning, which creates a signal that is sent to your vehicles control unit or module. The module uses this information to make any adjustments needed and help your car run smoothly.

A vehicle speed sensor is a fairly easy part to install, and can be done in a few short minutes.
  • First, you will need to locate it. The sensor will mostly like be mounted on the transmission; you should notice a plug sticking out of the transmission with a wiring harness connected to it.
  • Simply disconnect the wiring from the sensor; this will usually be done by pressing a tab of some sort.
  • Then unscrew the sensor from the transmission by turning it counter clockwise. If you are unable to remove it by hand, you can use a wrench to apply some light pressure.
  • Before installing the new replacement sensor, inspect the wiring and connector for any damage, if any damage is detected, replace as needed.
  • Grab your new speed sensor and simply install it by turning it clockwise, turn until it feels secure, then simply attach the connector.
Your car is now ready to get back on the road, and your speedometer will now display an accurate reading.

Your speed sensor affects a wide variety of functions on your vehicle, which is why it is important to replace it once it has failed. A new sensor will help your car run smoothly and efficiently. Car Parts Discount carries a large selection of speed sensors, so give one of our customer service representatives a call, and we'll be able to help you pick the right sensor for you!