Originally Posted By: dishdude
Since it just went out all of a sudden, what are the chances that it is just a solenoid or speed sensor?
That would give a code. At least it would in my 1995 Escort, but that uses EEC-IV, not OBD2. It doesn't light up any bulb, I had to manually check for codes. And it actually still works, but in the "minimum drivability" mode (more often called "limp home" mode) where I only get 1st and 3rd gears.
I would check the fluid level and the linkage. Also, if the fluid has never been changed you are way overdue.
I have around 208,500 miles on my Escort's original automatic transmission, and once I replace a solenoid, the transmission will work perfectly again.