When the overdrive off light flashes it means the powertrain
control module has "received" information of a transmission problem.
Take it in to the dealer or other transmission repair professional,
continuing to drive with the O/D OFF light flashing can result in
damage to the transmission.
The overdrive off light flashing - indicates a malfunction has been detected
overdrive light keeps flashing
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
When the overdrive light blinks that means a malfunction has been detected - get it checked out
What can be the problem with the overdrive light flashing on and off?
The flashing red light is for the factory security system that comes with your vehicle, I own a 2002 Ford Explorer and we have the same thing...
According to the 2003 Ford Expedition owners manual : If your Overdrive Off light is flashing : " have your vehicle serviced as soon as possible otherwise damage to your transmission can occur " ( it might just be a sensor )
A malfunction has been detected
When the overdrive off light is blinking that means a malfunction has been detected
blinking overdrive light indicates a transmission problem. take car to a transmission mechanic
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.