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Speed Sensor

 Shop Speed Sensor

Mysteries are best left in story books and television. They won't be of any help when it comes to dealing with cars. Sadly, cars are sometimes hounded by mysterious problems that can be tricky to solve. One such problem is speed sensor failure.The sensor is responsible for determining the speed at which your car's wheels rotate. Various systems on your car, such as anti-lock braking, cruise control, and even traction and stability controls, rely on this sensor to function properly. Once you notice these systems going haywire, check the speed sensor for damage.One of the most tell-tale signs of the sensor breaking down is when the speedometer no longer gives accurate readings. If you think you're going faster, or slower, than what the speedometer reads, then the sensor is definitely busted.Replacing this sensor should be a piece of cake. You'll just have to find a quality replacement. Lucky for you, Carparts has plenty of them in store.

• Each sensor is made to meet or exceed OE specifications.

• It provides a direct fit for easy installation.

• Our speed sensors are available for all engine types.

Speed Sensor Articles

  • Standard vs. Delphi: Determining the Better Speed Sensor

    Needless to say, the power steering system in your vehicle is a crucial feature in the handling of your automobile. The speed sensor plays a major role in this system as it provides the computer with important information to better adjust the engine functions. This makes it easier for you to control your automobile. With this, countless speed sensor units are offered by different brands in the market today. To help owners who are overwhelmed by the competition, we made a comparison of speed sensor units from two leading auto parts brands-Standard and Delphi.


    Both Standard and Delphi speed sensor units are more affordable than replacement parts from dealerships. As a matter of fact, as much as $200 can be saved with these brands. However, Delphi proves to be a tad more affordable with units priced at $72.08. Standard, on the other hand, offers them at around $109.39.

    WINNER: Delphi


    Installation and compatibility are important factors that should be considered in buying replacement parts. So we purchased one unit from each brand and have it installed into our Chevrolet Avalanche. The Delphi speed sensor looks exactly like the original part and goes right into the transmission case of the truck. The Standard sensor, on the other hand, required some splicing wherein a missing wire has to be removed from the old sensor and placed into the new one.

    WINNER: Delphi


    Both brands do not disappoint when it comes to performance. The Delphi speed sensor fixed some issues in the truck like high idle and bad timing. The Standard sensor, meanwhile, works as good as the stock speed sensor and immediately functioned with the pickup's computer after installation.

    WINNER: Both


    We checked the websites offering speed sensor units from the brands and found out that not all speed sensor replacements are covered with a warranty. Delphi provides a 12-month 12,000-mile warranty on selected parts. Standard, on the other hand, offers a 90-day 3,000-mile warranty covering some of the sensor units.

    WINNER: Delphi

    The verdict

    Needless to say, the speed sensor from Delphi proves to be a better purchase for our Chevrolet Avalanche. However, the Standard sensor may be a better choice for some models. Both are good choices as evident in their long years of operations in the market.

  • Four Simple Steps in Replacing a Speed Sensor

    The vehicle's speed sensor is a tiny yet crucial part that plays different functions for various systems in your automobile. It sends important information to the computer, allowing proper regulation of power steering pressure and directional stability. If a vehicle's transmission is not shifting well or the speedometer is not functioning at all, the speed sensor may need to be replaced. Doing so is not difficult and would only require an hour at most.

    Required skill level: Novice

    Needed tools and materials

      Ratchet set

      Socket set

      Screwdriver set

      New speed sensor

    Preparing for the replacement

    Pop the hood because the speed sensor is located in the transmission case, which can be accessed through the engine bay. Before beginning with the task, disconnect the negative cable from the battery of the vehicle. The vacuum hoses and the electrical harnesses attached to the air intake assembly also have to be removed.

    Removing the faulty speed sensor

    Once the vacuum hoses and air intake electrical harness are taken out, the installed speed sensor would be accessible. Remove the electrical wires connected to the old speed sensor with the use of the ratchet and a socket with the correct size. This allows you to take out the speed sensor freely from the transmission case. Do not forget to take note of the correct placement of the wires.

    Installing the new speed sensor

    Once the old speed sensor is taken out, compare it with the new speed sensor and determine which wire goes to the plugs on the new part. Also, there is a gear in the old speed sensor. Take the gear out and place it into the new speed sensor. Mount the new speed sensor into the location where the old one was removed from. Plug the electrical wires into the proper connectors on the new speed sensor.

    Testing the new speed sensor

    Put the air intake electrical harnesses, vacuum hoses, and negative battery cable back into their places. Close the hood and give the new speed sensor a test. Drive the vehicle and notice the differences in the steering as well as the activities of the speedometer.