To calibrate the speedometer on a Ford Ranger with bigger tires, you can follow these steps:
1. Understand the issue: When you install larger tires on your Ford Ranger, it can affect the accuracy of the speedometer. The speedometer will read a speed slower than the actual speed of the vehicle.
2. Locate the speedometer gear: The speedometer gear is located on the Vehicle Speed Sensor (VSS) that drives the speedo cable. It is a small gear that can be exchanged for a gear with a different tooth count to correct the speedometer for changes in axle ratio and/or tire diameter.
3. Determine the correct gear: To calibrate the speedometer, you need to determine the correct gear tooth count based on the new tire size. This can be done by consulting a gear ratio/tire size chart or by using an online calculator specifically designed for speedometer calibration.
4. Replace the speedometer gear: Once you have determined the correct gear tooth count, you can replace the existing gear on the VSS sensor with the new gear. This will adjust the speedometer reading to match the actual speed of the vehicle with the larger tires.
It’s important to note that the process may vary depending on the specific model and year of your Ford Ranger. Additionally, some newer vehicles may require specialized tools or software, such as FORScan, to calibrate the speedometer.
Remember to consult your vehicle’s manual or reach out to a professional mechanic for specific instructions tailored to your Ford Ranger model and tire size.
Contents
- Do I need to recalibrate my speedometer?
- Can I calibrate my speedometer for larger tires?
- How do I fix my incorrect speedometer?
- Do bigger tires affect gas mileage?
- How much will my speedometer be off with bigger tires?
- How much does it cost to recalibrate speedometer?
- How long does it take to get speedometer calibrated?
- How do I reset my speedometer after bigger tires?
- How long does speedometer calibration take?
- How do I get my speedometer to recalibrate?
Do I need to recalibrate my speedometer?
All speedometers must be calibrated to make sure the torque created by the magnetic field accurately reflects the speed of the car. This calibration must take into account several factors, including the ratios of the gears in the drive cable, the final drive ratio in the differential and the diameter of the tires.
Can I calibrate my speedometer for larger tires?
The answer is no. Tire size and speedometer accuracy are directly linked to each other. Up-sizing, or installing a taller tire, will lead to a speedometer reading that is slower than your actual speed.
How do I fix my incorrect speedometer?
In order to program it then plug in the yellow. Box turn your ignition to accessory mode. And you should see some lights flashing on the yellow.
Do bigger tires affect gas mileage?
Larger tires decrease your fuel economy because they are heavier, while smaller tires increase fuel efficiency. Bigger tires also have a higher rolling resistance than smaller tires which means they require more resistance and effort to get them rolling.
How much will my speedometer be off with bigger tires?
Actual Speeds For Popular Tire Changes
| Speedometer | 35″ Tires | 40″ Tires |
|---|---|---|
| 30 MPH | 33.9 MPH | 38.7 MPH |
| 45 MPH | 50.8 MPH | 58.1 MPH |
| 60 MPH | 67.7 MPH | 77.4 MPH |
How much does it cost to recalibrate speedometer?
about $50-100
Speedometer calibration cost will vary depending on where you take your vehicle to get calibrated. Most speedometer calibrations will cost about $50-100 but some places charge more. You do not necessarily get what you pay for when it comes to calibrations. Calibrations checks should not take a lot of time.
How long does it take to get speedometer calibrated?
Any reputable mechanic who records results properly and can produce a valid report may run a speedometer calibration on your vehicle. Though it costs about $75 and lasts about an hour, obtaining a calibration report could help your defense.
How do I reset my speedometer after bigger tires?
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.
How long does speedometer calibration take?
They will test your vehicle’s speedometer to determine if the reading is off and by how much. Typically this only takes 20 minutes to a half-hour and usually is only about $50-$80.
How do I get my speedometer to recalibrate?
To calibrate your electronic speedometer: With the power off, push and hold the calibration button (trip/reset button when equipped). While holding the button, start the vehicle and continue to hold the button until the pointer sweeps to full scale and stays at full scale.
