Overdrive Light Flashing Ford Explorer 2003. A blinking od light on a ford explorer means that there has been a fault detected in the transmission operation, a common one is excessive slippage detected between input and output turbine shaft speed sensors, this can be a slipping trans, you may not even fell it, but it is indeed slipping, but lets not get ahead here, go to the ford dealer and have a system trouble. My o/d (overdrive) light is flashing on my 2003 ford explorer xlt (4dr, 4wh drive).
Then post any codes to further the diagnoses. The contact owns a 2003 ford explorer. The auto part stores won’t have the proper scanner to read these codes.