Check owner's manual. If you don't have one copy and paste link below; www.fleet.Ford.com/maintenance/owners_manuals ---------------------------------------------- Also, Auto Zone will read your computer codes for FREE. and go from there.
A malfunction has been detected
When the overdrive off light is blinking that means a malfunction has been detected
Usually a flashing Overdrive light on any Ford with an Automatic Overdrive is a sign of an internal failure. Seek the assistance of a qualified mechanic or transmission repair shop.
When the overdrive light blinks that means a malfunction has been detected - get it checked out
There is a problem with the transmission.
if you have overdrive in that car it means that your about to go into overdrive
A malfunction has been detected
There may be a reason why a Ford Expedition's overdrive light is flashing. Check the manual to see if there is a reason. If not, take your Ford to a mechanic.
A malfunction has been detected - could just be a sensor - get it checked out
Normally the overdrive is allowed , so the overdrive OFF light does not light up When the overdrive is switched off , the overdrive OFF light will light up to let you know that the overdrive has been switched off
Problem with the Overdrive system or the Transmission.
blinking overdrive light indicates a transmission problem. take car to a transmission mechanic