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How do you diagnose a speedometer problem?
We seldom give even a passing thought to the operation of our vehicle’s speedometer, until a malfunction of one type or another has rendered it inoperable. Without a fully functioning speedometer, one is left with little recourse when attempting to travel at the appropriate speed.
Where is the sensor in a speedometer?
transmission
The speedometer sensor is located inside the transmission and attached to a driveshaft, which impacts multiple functions of the car. Due to this fact, it’s possible that the Check Engine Light will light up on the dashboard if a sensor problem is discovered by the vehicle’s CPU.
Does the ABS sensor affect the speedometer?
No effect unless you are braking and the speedometer indicates a corresponding reduction in speed. Motorcycles with an ABS system use the ABS wheel speed sensor on the front wheel to calculate and display the road speed of the vehicle. Older motorcycles used a worm gearbox and a bowden cable to run the speedometer.
What to do if your speedometer is not working?
If the speedometer on your automatic transmission Ford vehicle is not working, check the tail end of the transmission to see if the vehicle speed sensor (VSS) is securely attached. Another symptom of a bad speed sensor is sluggish automatic transmission shifting.
How does the speedometer work in a car?
Vehicle speed sensors feed information to a number of systems in the car about how fast your vehicle is traveling. The anti-lock brake system (ABS), the speedometer gauge, and cruise control are just a few of the important features of a car that rely on this vehicle speed data to do their jobs.
What happens if your speed sensor is bad?
Another symptom of a bad speed sensor is sluggish automatic transmission shifting. The vehicle’s computer also uses the speed sensor signal to control emissions and cruise control.