Question about 1999 Ford Contour

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Went up in tire size now speedo is off - 1999 Ford Contour

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You can go to Ford give them your vin# and tire size and a mechanic should be able to figure out what pick up,sensor or gear you need to make it accuracte. The easy and quick way is to buy a GPS unit and it reads your true speed.That is how we use to check speedo calibration. Mount the GPS and use it for the speedo. Most Fords are about 3 MPH off from the factory anyway.

Posted on Apr 20, 2013

Testimonial: "thanks I have done the first along with a tire size calculation and came up with the same at 80mph doing 75, but I have not tried the second one which I will do on Monday when ford is open, and I really appreciated the advice it was helpful! "

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