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3 Symptoms of a Faulty Speed Sensor in Your Vehicle

There are two common types of vehicle speed sensors,
And they each play a different role. One type (engine speed sensor) is usually
Installed on the transmission or transaxle,
And the other type (vehicle speed sensor) is installed on the
Knuckle arm on the four wheels.

The engine speed sensor takes data from the crankshaft position sensor.
That gives information for the engine spin speed.
Vehicle speed data comes from the speed sensor
Which is located on the wheels and sends information regarding wheel spin speed.

Therefore, any fault from either speed sensor or,
Any symptoms showing how defective.
It has become can lead to a wide range of abnormal problems in your vehicle
If you fail to pay attention to it in time.

Common Bad Speed Sensor Symptoms

1. Rough Gear Changes.

One of the most common speed sensor symptoms of;
Your car is that the transmission will not smoothly change gears of your vehicle;
Because of higher transmission revs. This means that the car engine runs at higher speeds than the car itself.

You may also find it very rough while shifting gears and as the problem worsens,
You will find it unbearable to change the car into higher gears.
This means that the vehicle’s transmission will;
Eventually engage into overdrive very late.

Why Does This happens?

The transmission of your vehicle can only shift smoothly with the help of a healthy speed sensor. This sensor counts the number of internal revolutions in the transmission. Consequently,
The control unit of the transmission receives the data then makes the
Necessary adjustments after calculating the rotational speed.

Unfortunately, it is impossible to repair the transmission speed sensor as it simply fails. You have to discard it and replace it with a new one.
A qualified mechanic will help you inspect and
Diagnose your vehicle’s speed sensor system although the symptoms in
All cars may seem identical.

2. Speedometer Malfunction

Once the vehicle’s speedometer stops functioning all of a sudden,
This is a sure-fire sign that indicates the speed sensor has become defective.
The malfunctioning speed sensor means that the speedometer;
Will not have the ability to read the speed of your car.

This is very risky because you will drive without knowing the exact speed
That your car has registered. This can land you in trouble with the authorities or;
Even cause unnecessary and avoidable accidents.

3. DTC or Check Engine Light On.

Furthermore, sometimes the check engine light may light up recurrently and
Periodically as you accelerate without any good reason. And commonly the code is P0500 (Vehicle Speed Sensor Fault Conditions). To check what the code is, you should use a diagnostic tool or car OBD scanner.


Many problems can arise if your vehicle has a faulty speed sensor.
However, a car that shows the symptoms of a worn-out speed sensor
May cause other associated symptoms to other parts of the car,
Such as a defective throttle position sensor or even a malfunctioning coil pack.

Faulty speed sensor symptoms come with some common characteristics,
That can affect your car engine and its related components.

And finally, any of the above-mentioned speed sensor symptoms will encourage
You to take your vehicle to an auto repair shop or trusted mechanic,
So, they can run a diagnostic device on your car to locate the faults.

Even though some above symptoms may point towards a malfunctioning transmission,
It is advisable to visit a repair shop having the best computer diagnostic equipment,
Even before visiting a repair shop specializing on
Speed sensors to ascertain the real problems.

See More:

Ekster EU

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