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I had mine adjusted by a speedometer tech. He kept adjusting it using a NGS scanner until it matched my GPS. Took him 3 tries and we just keep driving on the freeway until it was perfect. Now if GPS says 90mph on cruise control, my speedo is also 90mph. Cost me $154 for the tech to come to my house to do it. Just look in the yellow under speedometer service.
BTW my Ford dealer refused to do it stating 5mph off is not that critical, and being exact as a GPS would be too difficult to do.
had mine adjusted by a speedometer tech. He kept adjusting it using a NGS scanner until it matched my GPS. Took him 3 tries and we just keep driving on the freeway until it was perfect. Now if GPS says 90mph on cruise control, my speedo is also 90mph. Cost me $154 for the tech to come to my house to do it. Just look in the yellow under speedometer service.
BTW my Ford dealer refused to do it stating 5mph off is not that critical, and being exact as a GPS would be too difficult to do.
I've been told the same by the Ford Dealer. I will have to look and see if there is someone around here that will do that. Either that or will try larger tires after mine wear out (265's)
Last edited by Rushmore X; Apr 2, 2007 at 05:10 AM.
Reason: spelling