something is wrong in the transmission. It will have to be diagnosed. You probably have a bad shift solenoid in the tranny.
if you have overdrive in that car it means that your about to go into overdrive
The overdrive light to flash on 2005 Ford Expedition is caused by either the sensor problem or the electronic pressure control problem for the tranny.
A malfunction has been detected - get it checked out
The light will flash if the vehicle senses that you should be in overdrive (based on speed) but aren't. There should be a button on the end of your gearshift lever to turn overdrive back on. The only time you should turn that off is, for example, if you are pulling a trailer in the mountains. Turn OD back on and the light will stop flashing. If it doesn't stop then there is a problem with the transmission going into overdrive.
when overdrive button is flashing, it is an indicater that there is a problem with your transmission. it may be a simple problem or it could be a major problem. take it to a transmission shop before you need to be towed into shop
Overdrive is the normally allowed position so you don't see the light on If you turn OFF the overdrive , the overdrive off light will light up or if there is a problem the overdrive off light will flash
Sitting directly under the Battery box, is an electronic component ( I forget the name) that has a single electrical plug. Replaced it on mine and has worked fine since. it could also be alot of things, mine did that when i had to replace the speed senser. It also does it when it is raining and i hydroplane, where it puts itself into fuel safe mode, which enables it to change gears,
A malfunction has been detected
A malfunction has been detected
A malfunction has been detected
your transmission is about done, sell it
1) Check with your dealer, there should be an update (flash) for the body control module and/or 2) Change oil & filter.