tire size change - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 2 (permalink) Old 08-29-2013, 12:25 AM Thread Starter
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Join Date: Dec 2010
Posts: 2,086
tire size change

I've changed the tire size both higher and lower, but my speedo still reads the same (against a GPS). I thought it would reprogram the speed settings. Am I doing something wrong or just not understanding what the tire size is for?
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post #2 of 2 (permalink) Old 08-05-2014, 02:43 PM Thread Starter
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Re: tire size change

Follow up. I just downloaded software from A/E and did the reset as always, but guess what, My speedo changed!!! It works!
lenzhotrod is offline  

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