speedo is off duzz any one know - Ford Powerstroke Diesel Forum
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Old 02-20-2013, 04:07 PM
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speedo is off duzz any one know

95 f250 when i drive it i have my gps on and when my truck says im goin 65 my gps says im goin 62 and every one is passing me ... any one have this happend to them .... plz help if u can
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Old 02-20-2013, 04:26 PM
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I know you can reprogram it but you can only do it 3 times I think my father had to do it on a 97 he had.
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Old 02-20-2013, 04:44 PM
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thanks .... what mpg do u git on the truck thats in the pic
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Old 02-20-2013, 05:07 PM
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You can reprogram the speedometer up to 6 times. What size tires are on it and is it 2wd or 4x4? Cheers!
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Old 02-20-2013, 05:19 PM
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265 75 16 ya its 4x4
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Old 02-21-2013, 10:27 AM
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A code of 1008 should get you close. Cheers!
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Old 02-21-2013, 12:47 PM
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What do u main a code ?
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Old 02-21-2013, 07:02 PM
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When you reprogram the speedometer you have to change the code used to calculate the correct speed. Search for a bit and you will find the procedure or reference to it. Cheers!
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Old 02-21-2013, 07:10 PM
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O my bad ... thank u so much..
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Old 03-18-2013, 05:25 AM
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see, I have something similar to that issue on my truck, only difference is that mines 2wd 3.55 and yesterday out of nowhere, it started churning out 2500 rpms to do 70mph (on the guage) so on the trip back home, I turned on the gps and its showing 78mph.... hmmmm maybe that's why im hauling a** past people and only getting 16mpg highway as opposed to my 22mpg when I first got the truck...
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