How do you know if your output speed sensor is bad?

Transmission revs higher before it changes gears.
The car’s transmission engages into overdrive late and sometimes will never go into that top gear.
Brakes are sometimes harder than normal when coasting.
Speedometer behaves erratically or sometimes does not work at all.

Where is the speed sensor located on a 2002 Ford Explorer?

Climb under the Explorer below the driver’s door. Locate the speed sensor, which mounts on the driver’s side of the transmission.

What sensor controls speedometer?

The vehicle speed sensor (VSS) is also commonly referred to as a transmission speed sensor or output shaft speed sensor. It is a small device—typically mounted somewhere on the transmission—that determines how fast your vehicle is going by measuring the rotation of a toothed wheel on a shaft inside the transmission.

What happens when output speed sensor goes bad?

Therefore, a failing speed sensor will have a direct impact on automatic transmission operation. One of the most common signs of a bad speed sensor is abnormal automatic transmission operation. If the VSS is faulty, the transmission may exhibit symptoms such as delayed shifts, hard shifts, and limited gear operation.

Where is the speed sensor located on a 2005 Ford Explorer Sport Trac?

You’ll find the speed sensor on Your 2005 Ford Explorer mounted to the driver’s side of the transmission, bolted in place with two 10mm bolts.

How do you change a transmission speed sensor?

Replacing Your Transmission Speed Sensors

Having found the sensor or sensors to be faulty, remove the connector between the sensor and the vehicle’s wiring.
Using the proper socket, remove the faulty sensor.
Connect the new sensor to the vehicle’s wiring.
Install the new sensor.
Lower your car.
Start the engine.

How does the VSS work on a Ford Explorer?

The VSS is one part of a system of sensors that helps keep you safe (traction control, ABS, cruise control). A modern vehicle’s speedometer takes the input from the Vehicle Speed Sensor and sends that data to the ECU. The ECU is programmed with your Explorer’s gear ratios and stock tire height.

Why is the speedometer not working on my Ford Explorer?

If your Ford Explorer’s speedometer is not working, it’s usually going to be caused by an issue with the VSS (vehicle speed sensor), or a bad ECU. The VSS is usually not very expensive, and they are not that difficult to replace. Vehicles used to use a cable that would usually run from the tail shaft of the transmission to the speedometer.

What does the speed sensor on a Ford do?

by Thomas West. The vehicle speed sensor (VSS) on your Ford vehicle is an electronic device that measures your vehicle’s speed. This information is sent to the electronic computer module (ECM), where it is shared with other vehicle systems that depend on this data.

Where is my vehicle speed sensor ( VSS ) wire located for?

Where is my Vehicle Speed Sensor (VSS) Wire Located for Radio Installation? When you remove your OEM radio, there are 4 plugs that plug into the radio. Only 2 of the 4 connectors are used with your new aftermarket radio which are the 2 connectors with the larger size pins.

Where does VSS data go in a car?

This information is sent to the electronic computer module (ECM), where it is shared with other vehicle systems that depend on this data. The function of several of your vehicle’s systems depend on data from the VSS and ECM, such as variable speed power steering, cruise control, anti-lock brakes and your speedometer.

How do you replace the VSS sensor on a Honda Accord?

Place a jack stand under the frame rail and lower the jack. Remove the lug nuts with a lug wrench turned in a counterclockwise direction. Remove the wheel and place it aside. Locate the VSS behind the brake rotor. Spray penetrating fluid on the sensor and let it soak in for a few minutes.