Speedometer Calibration

Speedometer Repair

Some gauges on your vehicles cluster may stop working properly over time or need to be calibrated due to changes to the vehicle. For example, the speedometer may start to give an incorrect reading, stick, flutter, or just stop working randomly. This is the time to get a speedometer repair or calibration.

If you have a mechanical speedometer, here are a few simple steps on how to do a speedometer adjustment.Start by opening the vehicle’s hood and locate the transmission. Next, unscrew the speedometer cable and unscrew the bolt holding the gear housing cover. After removing the plate, you will see two gears. Count the number of teeth the gears have and remember it for later. Next, get the diameter of the tire and divide 20,168 by the tire’s diameter. This is the tire’s revolutions per mile. Multiply this by the amount of teeth your gears have and multiply again by the vehicle’s axle ratio (which can be found in the vehicles supporting documents). Purchase the necessary driven gear for your vehicle. Remove the old driven gear by pulling it out of its clips and clip in the new driven gear. Secure the gear housing cover and the speedometer cable back.

If you have an electric speedometer you would start by determining the distance of the test drive you would need to recalibrate your speedometer, which can be found in the vehicles supporting documents. 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.

However, if you aren’t handy with cars, don’t have the time, or just need help, it may be best to take it to a professional. They will make sure it is done correctly and safely. Safety Restore is a speedometer repair shop that specializes in all things related to your vehicles Supplemental Restraint System. Safety Restore can help rebuilding tachometer gauge, oil gauge repair, temperature gauge repair, gas gauge repair, and car odometer repair. They do it all! The speedometer repair cost is only $118.99! Drive knowing you can rely on your speedometer.

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