Intermittent Speedometer

Spedometer on my Ford Probe GT is intermittent. Note the vehicle was stored in my garage throughout the winter. When I first starting driving it after the winter storage the speedometer worked for approximately 10 km's then it stopped. Since then it has been intermittent. The O/D indicator light is also flashing. Any suggestions???

change the oils? Did you put stored crap in it b/c it could of destroyed stuff when you turned it over.