Speedometer recalibration after putting on bigger tires

[Jon_M]

Has anyone recalibrated their Speedometer after putting on bigger tires. When I went to my dealership, they would not recalibrate it. I know it’s 2 MPH off over 55 MPH.

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[Mystic]

Yes, it's a relatively simple process with FORScan.

 

[lancerdood]

Yep, piece of cake. Assuming you have an ODBLink EX (or similar) and FORScan.

 

[Jon_M]

Yep, piece of cake. Assuming you have an ODBLink EX (or similar) and FORScan.

I don't have ether.

 

[lancerdood]

I don't have ether.

Maybe someone in your area is knowledgeable but it’s relatively easy. Just follow that video.

You can get the ODB from Amazon for $70 and you can download FORScan and get a 2 month extended license for free. You will need it for many things like adjusting ride height (VDM) after a lift & bigger tires so the truck knows its new level for ride quality and correct shock performance.

 

[Jon_M]

Maybe someone in your area is knowledgeable but it’s relatively easy. Just follow that video.

You can get the ODB from Amazon for $70 and you can download FORScan and get a 2 month extended license for free. You will need it for many things like adjusting ride height (VDM) after a lift & bigger tires so the truck knows its new level for ride quality and correct shock performance.

Thanks

 

[Havasu RR]

Has anyone recalibrated their Speedometer after putting on bigger tires. When I went to my dealership, they would not recalibrate it. I know it’s 2 MPH off over 55 MPH.

If you end up doing the Ford procal that same piece of hardware has a tools section where you can change tire circumference to adjust speed. It's the single best way to do it. And I've done both

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