Repairing Guides

how to repair speedometer sensor

by Warren Rempel II Published 2 years ago Updated 1 year ago
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Turn the wrench counterclockwise to unscrew the damaged speed sensor. Discard it. Align the new VSS into your car’s transmission. Screw it in a clockwise motion to attach and tighten. Change the bolt and tauten it to keep the replacement speed sensor in place.

Part of a video titled How to Fix a Speedometer Gauge in Your Car (Speed Sensor)
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The electrical connection and until it snaps. Well in this case it didn't snap it so old but it isMoreThe electrical connection and until it snaps. Well in this case it didn't snap it so old but it is on then we put all the place a duct work back on. Now we'll close the hood and take it for a drive.

Full Answer

How much would it cost to repair a speedometer?

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. These prices are just an estimate and your particular case will be different depending on the issue.

Is there a way to reset the speedometer?

Speedometer reset?

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  • Glenn W. I aggree-I'd check with another dealer or talk to someone higher up at yours. ...
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How do I get my speedometer recalibrated?

Tire Size and Speedometer Accuracy

  • UPSIZING OR DOWNSIZING. You might ask: do bigger tires make your speedometer faster? The answer is no. ...
  • PLUS SIZING. Plus sizing means replacing your original equipment tires with a tire that is a different size, but it has the same overall height and diameter.
  • Tire Size and Speedometer Calculation. You can also manually calculate your speed. ...

How do you fix a broken speedometer?

Troubleshooting Speedometer Problems

  • Start by removing the engine cover and examine where the cabling goes into the main segment of the vehicle. ...
  • Remove the bolt from underneath the dashboard so you have easier access to the old cable.
  • In addition, take out the nut on the transmission and cable through the passage. ...

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How do you fix a speedometer and speed sensor?

0:336:17Car Speedometer Stopped Working Works Intermittently Or ErraticYouTubeStart of suggested clipEnd of suggested clipQuite often the speedometers would fail or the odometers would stop working because of littleMoreQuite often the speedometers would fail or the odometers would stop working because of little plastic gears that were inside they would dry out crack and fall apart.

What to do if speedometer stops working?

If your speedometer stopped working and stays at 0 MPH, you should have your car checked ASAP. 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.

What causes a speed sensor to malfunction?

Failing to follow your vehicle maintenance schedule can increase the risk of speed sensor failure. This device will not be able to produce correct readings if the magnetic pickup and/or toothed wheel become heavily covered in gunk, particularly old transmission fluid contaminants.

How do you troubleshoot a speed sensor?

How to Troubleshoot Speed Sensors1.) Check Sensor Connection. ... 2.) Check Gap. ... 3.) Resistance Measurement (two wire plug only) ... 4.) Check Power (three wire plug only) ... 5.) Check Wiring (three wire plug only)

Where is the fuse located for the speedometer?

1:402:54KIA OPTIMA SPEEDOMETER FUSE, SPEED SENSOR FUSE LOCATION ...YouTubeStart of suggested clipEnd of suggested clipSo there is a special fuse for the transmission. Control you need number two okay that fuse rightMoreSo there is a special fuse for the transmission. Control you need number two okay that fuse right here that controls that and that's this 15 amp fuse.

Where is speedometer sensor located?

0:051:38Vehicle Speed Sensor Location - YouTubeYouTubeStart of suggested clipEnd of suggested clipNow we're going to come down here underneath the vehicle. And we gonna go way in the back. And thereMoreNow we're going to come down here underneath the vehicle. And we gonna go way in the back. And there it is right there with the blue connector on it. It has two wires to go to it.

Can a speed sensor be cleaned?

With the sensor free, take your rag and wipe the sensor until it's clean. I prefer not to use any chemicals on the sensor to avoid potential problems. If, however, the sensor is really grungy, use a mild soapy solution and rinse well.

How do I reset my speed sensor?

0:542:47Speedometer reset procedure - YouTubeYouTubeStart of suggested clipEnd of suggested clipIf that's the case this is all you need to do to fix that problem make sure that it isn't displayingMoreIf that's the case this is all you need to do to fix that problem make sure that it isn't displaying the odometer.

How do you test a speedometer sensor?

Connect the VSS to a power drill so you can simulate the rotation of the vehicle's transmission and read the multimeter to see if the voltage increases as the speed increases to check if the sensor is working properly.

Which speed sensor controls the speedometer?

The speedometer gets its information from the car's final-drive gearbox through a vehicle speed sensor (VSS). Vehicle Speed Sensor This is a device that sends a signal to your car's ECU about how fast you're going.

Can you drive without a speed sensor?

However, when it comes to wheel speed sensors, a minor-seeming glitch may turn into a major safety risk. That is why in general, it is unsafe to drive a vehicle with a broken wheel speed sensor.

What are the symptoms of speed sensor?

Transmission Problems Therefore, a speed sensor failure will have a direct impact on the automatic transmission operation. If your vehicle has a failed speed sensor then you might notice signs such as hard shifting, limited gear operation, delayed shifting and rough shifts.

Can I still drive my car if the 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.

Can you drive a car with a broken speedometer?

In some states, you'll get a ticket for driving with a broken speedometer. You'd get a ticket for an equipment violation or something like it. It would be difficult for the police officer to catch the issue, though. They would have to ride in the passenger's seat at any speed to notice that your speedometer is busted.

How much does it cost to fix the speedometer on a car?

Because the cost of repairing a broken speedometer averages around $200, you'll likely want to replace it with a new one. This can run you about $250, but you'll have an entirely new unit. The most common cause of a malfunctioning speedometer is a problem with the speed sensor.

How do I reset my speedometer?

0:542:47Speedometer reset procedure - YouTubeYouTubeStart of suggested clipEnd of suggested clipReset. Check all the lights.MoreReset. Check all the lights.

How to tell if your speedometer sensor is failing?

Symptoms that your speedometer sensor is failing include a speedometer that does not work, a vehicle that loses power, a cruise control that does not function, or an illuminated Check Engine Light.

How should a needle move on a speedometer?

The needle should move smoothly on the speedometer throughout its range of movement.

How to get a sensor out of a syringe?

You may have to wiggle it back and forth while pulling it out. It may be necessary to use a screwdriver to carefully and gently pry the sensor free.

What to do if you encounter resistance when installing a sensor?

If you encounter some resistance when installing the sensor, try repositioning the gear and then reinstall. Be careful not to exert too much force as damage can occur.

Do we take a speedometer for granted?

Most of the time, we all take a speedometer for granted. We get into our vehicle, fire it up, and take off. We just expect it to perform without having to think about how it does its job until it malfunctions.

How A Speedometer Works

In the simplest words, a speedometer or a speed meter is a device that measures and displays the speed of a vehicle. For decades, a speedometer has been a standard addition to every kind of vehicle.

A Brief History Of The Speedometer

Speedometers aren’t the newest things in the automobile industry, but they haven’t been around since cars came into being. The absence of speedometers in the earliest vehicles wasn’t an issue as older vehicles topped out at comparatively low speeds. It was much easier for drivers to have a grip over the speed of their vehicle.

Speedometer Not Working: Common Problems

There are a handful of more probable problems your vehicle’s speedometer might start displaying. Many of these are due to wear and tear as the vehicle ages. If your speedometer is showing any of these issues, a replacement or fix may be in order.

Why The Speedometer Not Working

There can be multiple reasons behind a malfunctioning speedometer. Luckily, a replacement doesn’t always have to be the sole solution. Below, we provided likely problems that can be messing with the speedometer, as well as some troubleshooting tips.

What To Expect When Fixing A Broken Speedometer

It’s best you don’t try to repair a speedometer if you’re not skilled with your tools and know your way around a vehicle’s internal components. A mechanic will have a look at your car to determine the reason the speedometer has stopped functioning.

How To Repair A Broken Speedometer

Before the repair of the speedometer, it’s crucial to determine the main reason behind the issue. Circuit integrity and speed sensor function can be validated using a multimeter or scan tool. Similarly, a bi-directional scan tool can be used to examine a vehicle’s instrument cluster.

Troubleshooting Speedometer Problems

Troubleshooting the problems of the speedometer has to be done in multiple steps. At first, start with removing the cables of the speedometer.

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