How do you change the speedometer setting on a 1988 jeep Comanche 4x4?

1. How do you recalculate a speedometer?
2. How do you recalibrate a speedometer for bigger tires?
3. How does a speedometer gear work?
4. How do I slow down my speedometer?
5. Where is the speedometer sensor?
6. What are gear ratios?
7. Will putting bigger wheels change speedometer?
8. Does getting bigger wheels affect speedometer?

How do you recalculate a speedometer?

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 do you recalibrate a speedometer for bigger tires?

Identify the speedometer calibration button and press-hold, crank your vehicle and then release the button. Push the button and drive the distance recommended by the manufacturer. After driving, press the button again, and the speedometer will automatically calibrate itself.

How does a speedometer gear work?

A flexible drive cable inside a flexible tube links a small magnet inside the speedometer to the gearbox output shaft. The magnet rotates with the shaft and its magnetic field attracts a metal drum to turn the speedometer needle against the force of a hair spring.

How do I slow down my speedometer?

“If you need to slow down the speedometer, you need more teeth on the driven gear.” For example, if your speedometer is showing 60 mph and it should be showing 52 mph, you will need to use a driven gear with more teeth to spin the speedometer cable slower. In this case, you need to add three teeth.

Where is the speedometer sensor?

Hello, the speed sensor for the speedometer is located on the transmission at the rear extension housing. The housing is the part that the driveshaft slip yoke (front part of driveshaft) would be position at. The sensor is attached with a bolt that needs to be removed, it has a two wire connector going to it.

What are gear ratios?

A gear ratio is the ratio of the number of rotations of a driver gear to the number of rotations of a driven gear. A colon is often used to show a gear ratio: gear ratio = rotations of a driver gear : rotations of a driven gear.

Will putting bigger wheels change speedometer?

You might ask: do bigger tires make your speedometer faster? 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.

Does getting bigger wheels affect speedometer?

One of the most common problems a change in your tire and wheel size can cause is an inaccurate speedometer. A larger tire has a higher circumference and fewer rotations as you roll along the highway. Because the tires rotate slower, the speedometer reads this as a lower speed.