Where is the shift/transmission solonoid located and how many are there? on 1995 Ford Explorer

The OD ON/OFF light blinks. Transmission won't shift from first to second gear.

1 answer
The solenoids are located inside the transmission pan. There could be a number of different solenoids on your transmission. This video will give you a very good idea of what it looks like.
http://www.youtube.com/watch?v=24gkmDDV0C8