Speedometer reads alot faster then the vehicle is moving. Checked with gps

Hello, Dave here, contributing to RepairPal and providing expert advice since 2010. My first question would be: are the factory original wheels and tires installed on the vehicle? It would seem to me that the processor thinks a different diameter tire is installed on the vehicle. A shop near you with the Ford IDS diagnostic tool and software -- or dealer - can assist in inspecting the "programmable parameters" which include tire size and wheel revolutions per minute which may very much assist you in resolving your concern. https://repairpal.com/auto-repair-near-me Click the link or call us at 877-913-1554. We'll gladly find you a certified RepairPal shop in your area.