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You have a 1991 Ford Explorer and the speedometer seems to read faster than vehicle is traveling How do you calibrate a speedometer?

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2005-11-15 17:28:26
2005-11-15 17:28:26

First, make sure the vehicle has the right size tires. Look on the door plate or in the glove box to find the size recommendations. If the tires are sized correctly, the speedometer cable gear can be changed to affect the speedometer displayed speed. Remove the cable where it enters the transmission tailshaft, count the number of teeth and get a different size gear depending on whether you want the speedometer to display faster or slower. If the speedometer is showing slower than you are actually travelling, get fewer teeth on a replacment gear. If the speedometer is showing faster than you are actually travelling get a gear with MORE teeth on the replacment gear.

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Related Questions


How fast the vehicle is traveling.


I believe starting on the 1996 Explorer , it went to an electronic speedometer with a vehicle speed sensor ( VSS ) so it doesn't have a conventional speedometer cable


A speedometer measures the speed a vehicle is traveling in miles per hour (MPG) or kilometers per hour (KPH).


I believe that 1995 was the last year for a conventional speedometer cable on a Ford Explorer , and then Ford went to an electronic speedometer with a vehicle speed sensor


I believe it was 1996 that the Explorers started using an electronic speedometer with a vehicle speed sensor ( VSS ) Since then the Explorers have not had a conventional speedometer cable


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1996 and newer have an electronic speedometer and a vehicle speed sensor that operates your electronic speedometer and also sends a signal to the powertrain control module (PCM) The PCM uses this signal to control several different functions of the engine and transmission.. Your 1996 doesn't have a conventional speedometer cable.


The speed the vehicle is traveling in MPH and KPH. Also the total miles traveled by the vehicle is recorded by the odometer. It also will have a resetable trip meter that will record miles traveled at any given time.


On your 1995 Ford Explorer you have a conventional speedometer cable driven speedometer , 1996 and newer Explorers have an electronic speedometer and a vehicle speed sensor according to my Haynes repair manual


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where is the location of the vehicle speedometer sensor on a 99 Mercury Mountaineer


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That would be called the speedometer.



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