Hi, I agree with the Vehicle Speed Sensor idea. This happened to me, the OD light flashing. After a while, eventually the VSS on the transmission failed completely, the car would not go into 4th gear, and the speedometer reads 0 mph, regardless of speed. After replacing the VSS, the OD light worked normally, all was well, and my CEL light went off for the first time in 3 years! You can just replace the PRNDL shifter stick if needed if there is a wiring issue, but the VSS is more likely. Thanks and good luck!
- Contour_97
Ex Ford Motor Dearborn Design Engineer/Analyst - 7 years
Now Caterpillar Valvetrain Design Engineer - 6 years
97 Contour GL Sport/Auto/2.5L V6/80,500 miles
Love my Contour when it works!
