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The Daily Insight

How do I fix my speedometer

Author

Dylan Hughes

Published May 12, 2026

If you’re doing this with a mechanic, they will usually charge you around $100 to $250. Issues with your sensors or your actual speedometer do not cost much but, if the issue lies deeper and requires additional diagnostics, you can expect to pay between $200 and $400.

How much does it cost to fix a speedometer?

If you’re doing this with a mechanic, they will usually charge you around $100 to $250. Issues with your sensors or your actual speedometer do not cost much but, if the issue lies deeper and requires additional diagnostics, you can expect to pay between $200 and $400.

Can I still drive my car if speedometer doesn't work?

Can You Still Drive Your Car If the Speedometer Doesn’t Work? Technically speaking, it is possible to drive a vehicle with an inoperable speedometer. However, doing so is not recommended. Without an alternative solution at the ready, you will be unable to recognize the speed at which your vehicle is traveling.

What causes the speedometer not to work?

The most common causes of a speedometer that stopped working include are a faulty speed sensor, a broken gear on the speedometer, damaged wiring, or a faulty engine control unit.

Why is my speedometer acting up?

Some speedometer issues are due to dirty or faulty sensors that relay false data through the cable and eventually show up on the dashboard.

Can you replace the speedometer in a car?

Replacing the speedometer can seem like a large job, but when broken down into steps, many are able to complete it themselves. If you have any questions along the way, you can always Ask a Mechanic. If this task seems like too much for you to do on your own, YourMechanic also performs speedometer service and repair.

How do I fix my bike speedometer?

Put a small amount of speedometer cable grease on the square end of the cable, and reattach it to the front wheel speedometer hub. Route the cable to the underside of the speedometer and attach the upper end to the fitting on the speedometer. Tighten the fitting with pliers. Reattach the speedometer cable guides.

Where is speedometer sensor located?

The vehicle speed sensor, or VSS, is located near the transmission’s output shaft. The specific placement of the sensor allows the sensor to detect, and report, to the engine’s computer through attachment cabling, the rotation and speed of the shaft.

How do I change my speedometer reading?

Press and hold the calibration button located on the speedometer, start the vehicle, and then release the button. Press that button again and then take the test drive. Once you have driven the distance needed, press the button once more and the speedometer will calibrate itself to accommodate the new tire size.

Is it legal to drive without a speedometer UK?

It is an offence to drive a vehicle that does not have a fully functional speedometer which shows both mph and kmph readings. It is also an offence for certain classes of vehicles, such as HGV’s not to have a speed limiter installed.

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What sensor controls the speedometer?

The speed sensor is a small device that tells your car’s speedometer how fast you’re going. It plays a role in your car’s transmission and cruise control systems.

Can a blown fuse cause the speedometer not to work?

Faulty Fuse/Bad Wiring: In very wet conditions, it is possible for exposed wires to get wet and short out, causing a fuse to blow. When the fuse for your speedometer stops working, it can cause the speedometer to drop to zero.

What are symptoms of a bad speed sensor?

  • Transmission problems. …
  • Erratic speedometer readings. …
  • Inability to engage cruise control. …
  • Lack of torque converter clutch application. …
  • Check Engine Light is triggered. …
  • An internal electrical fault in the speed sensor. …
  • Damage on the sensor itself. …
  • Poor vehicle maintenance.

How much is a speed sensor?

The DIY cost for replacing a speed sensor is the cost of the sensor. Depending on the vehicle year, make and model, a speed sensor can cost as little as $7.92 or as much as $100. For most vehicles, the cost for a speed sensor is between $25 and $45.

Does bigger tires affect speedometer?

Up-sizing, or installing a taller tire, will lead to a speedometer reading that is slower than your actual speed. This is because a taller tire will have a larger overall circumference, causing it to need to travel more distance per revolution than the original equipment tire.

Can a speed sensor be cleaned?

The various components of the speed sensors can gather dirt from the road and from the dust that is generated by constant sharp braking. Speed sensors need to be cleaned on a regular basis to avoid damaging the anti-lock braking system.

What happens when a wheel speed sensor goes bad?

loss of stability and traction control: if it detects a bad wheel speed sensor, the abs computer will usually disable the stability and traction control systems, as well. on some vehicles, a bad wheel speed sensor may affect other functions as well, such as hill-start assist and roll stability.

Can I use GPS for speedometer?

Tracking your car’s trip data can be fun and interesting, but not all cars come with an advanced trip computer. Using your Android phone’s GPS sensor, SpeedView can act as a speedometer with some additional data functions.

Do I need a Speedo for an MOT?

According to the GOV.uk website, you do not need a motorcycle speedo to pass your motorbike’s MOT. The above link refers to all the elements of motorcycles that are checked during an MOT. This can include: Lights.

Is it illegal not to have a speedometer?

A speedometer is a legal requirement.

What would cause the speedometer to read wrong?

Reasons why your speedometer is inaccurate Damaged wiring or a blown fuse could be enough to through the speedometer out of whack. A malfunctioning sensor or engine control unit could be reporting an erroneous speed. A change in wheel or tire size could even throw off the senor and its calculations.