Table of Contents
Where is the output shaft speed sensor located?
Locate the transmission speed sensors, they’ll be near the front and rear of the transmission housing. Consult the repair manual for your car.
What happens when output speed sensor goes bad?
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.
What is the difference between an input speed sensor and an output speed sensor?
Transmission input/output sensors calculate the transmission’s actual gear ratio during usage. The first sensor, referred to as the input sensor, monitors the speed of the transmission’s input shaft. The second sensor is the output sensor, which monitors the output shaft speed.
Can you drive with a broken speed sensor?
In general, it is unsafe to drive a vehicle with a broken wheel speed sensor. The car’s computer will not be able to determine the speed that your vehicle is traveling, so it might apply the brakes at a faster rate than necessary or increase the engine power.
What causes speed sensor failure?
Over time, the transmission speed sensor can go bad due to wiring issues or just outright failing due to it constantly being used every time you are driving your vehicle. If the sensor is magnetic, it can go bad from iron sticking to the tip of the sensor, which will cause an inaccurate reading.
How long does it take to replace a transmission speed sensor?
Most experienced technicians can replace the transmission speed sensor within 2-3 hours. Depending on the severity of the damage it can take a bit longer.
What does input speed sensor do?
Transmission speed sensors are used to calculate the actual gear ratio of the transmission while in use. The first is known as the input shaft speed (ISS) sensor. As described, this sensor is used to monitor the speed of the transmission’ input shaft.
Which speed sensor controls the speedometer?
The output speed sensor measures how fast a vehicle moves and sends that information to other vehicle systems. The transmission control unit uses the speed to determine when to change gears, adjust the torque converter and display the vehicle’s speed in the speedometer.
How much does it cost to fix a speed sensor?
To replace the speed sensor, you are going to pay, on average, between $330 and $380. The labor should only cost you between $80 and $100, while parts will run you about $265.