My O/D off would flash too. I was told it was the solenoid that needed to be replaced. Apparently it needs to be done quickly and I waited too long (one week). The truck (2004 Explorer) started to downshift from second to first really hard on the last day. I took it to the shop and had to have the transmission rebuilt. If you catch it early, maybe you can just replace the solenoid.
Wednesday, February 27th, 2013 AT 6:55 PM