I have about 1500 miles on my fiesta, 5sp. Have noticed that compared to the GPS my speedometer reads about 3MPH slow @ 55MPH, and about 5 MPH slow at 80 MPH. Talked with some folks, who seem to think that my car speedo is more accurate, however coming from a survey background, and the fact that the discrepancy is constant (Always occurs when driving) leads me to believe, that something isn't quite right the programming, of my cars speedo. Any one else notice this????
That may be able to be programmed, because i think the days of a mechanical tach cable are long gone.
That may be able to be programmed, because i think the days of a mechanical tach cable are long gone.