I've got a '97 Contour with 2.0 L and 5 speed transmission. Back in the summer I replaced the worn out tires with some lower profile 50 series tires and have been driving with the speedometer and odometer reading 8% high ever since. I've always owned Mopars and with those cars, if you change tire size or axle ratio you just correct your speedometer by purchasing a new $5 speedometer pinion drive gear with fewer or more teeth from the dealership. This is the gear under the VSS (vehicle speed sensor). I've been informed by numerous sources that with the Contour you can't change the speedometer pinion gear. Ford doesn't make them. I'm told you have to program the computer somehow but my local dealership won't do it. I too am looking for suggestions on how I can get my speedometer reading accurately again for a reasonable cost. Any ideas?
