Flashing od flashing "od" and won't do anything else

check fuses
the OD lamp fails of the transmission fails and some suzuki
cars do not allow OD in 4wd, , is this car 4wd featured.
the OD may flash too for transmission errors.
you must scan the PCM (tcm inside) to see the reason why.
but put transfer case in to 2wd.
the operators guide covers this, for sure if 4wd car and chapter named the same.

The OD light flashes when a fault is detected in the computer controlled transmission, you need that fault code read with a scan tool.

Sorry to say your vehicle does not use a vac modulator.

I've been doing research on these vans. Seems I remember that if the OD light flashes >>> fluid level is low. Also, I read where Ford wants you to overfill fluid so as to allow you to go around corners without loss of lubracation. By this time you may have melted it down and bought a Honda. I have a 95 Teal color and just in flawless shape, however it won;t go in reverse. Just follow the hood ornament and don;t look back...right ! ?

Check the help link mentioned below:---

OD light flashing and transmission fluid leaking?
http://repairhelpcenter.blogspot.in/2012/02/od-light-flashing-and-transmission.html

-------

TRANSMISSION FAILURES, OD WARNING LIGHT,

http://alltypesofpartsreplacing.blogspot.com/2012/12/transmission-replacing-and.html

-------

These will help.

Thanks.

You did not say anything about your transmission OD light flashing is it?

The flashing OD light indicates there is a problem in the transmission control system. When the Transmission Control Unit detects a malfunction it will flash the OD light and store a Diagnostic Trouble Code (DTC) in the computer. You will need to have a Ford Dealer pull the codes and determine exactly what is wrong.
I wish I could be more specific, but there are about 120 different reasons for the flashing OD light.

The OD light is flashing to alert u to the fact that some kind of fault has occured in the transmission, the problem is in many cases a slipping condition, you need to have the trans control system tested for the trouble codes that are stored when this light flashes, this will let u know what the problem is and a direction to follow to repair it.

I had a similar problem with my 98 mystique when i bought it used. I had no overdrive and was lucky to find a honest transmission shop that found the problem. In my case the overdrive was unplugged. They plugged it back in,cleared the computer and changed my tranny fluid and i was good to go. You should be revving about 2400rpm at 65mph. The other thing you can check is to make sure that the wires that go from the overdrive button are not broken off or coroded.