I also have a 98 Ford Explorer that was doing the same thing- When I took to the First Ford dealer they wanted to replace the Transmission and transfer case at a very height cost. I returned it to the dealer I purchased from and they did say there was a problem in the transfer case and replaced it. Thier coast was $700+(Dallas,TX)
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
The OD light flashing is an indicator of an electrical failure in the transmission. Get it fixed now or replace the tranny later.
blinking overdrive light indicates a transmission problem. take car to a transmission mechanic
if overdrive light is flashing , take your vehicle to a transmission shop that light indicates a problem in the transmission do not ignore it to long or you will be calling a wreckr to come tow your vehicle as the transmission will quit i been there lol
if the overdrive light is flashing, you have a problem in the transmission you need to take vehicle to a good transmission shop before you need to get towed in
Flashing overdrive light, or one that goes out and won't come back on means you need to have your transmission checked. I believe in a 99 they have a computer hook up they can use to see if they can figure out what is wrong with the transmission.
its your transmission. try flushing it and using lucas...if that doesnt work you need a new transmission... :(
overdrive is not working and it should be looked at by a transmission shop
The overdrive off light will flash in your gauge cluster when a malfunction has been detected by the powertrain control module
The Overdrive Light flashing indicates an internal transmission problem which could be caused by anthiny inside the transmission. Most likely the transmission would have to be removed and taken apart to find the problem.
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 )