Re: 1996 Ranger 4cyl 2.3 OD on/off light flashing
Could be something as simple as sticking/dirty/defective solenoid to something more serious like tracing out a bad wire in a wiring harness or a bad pcm. A buddy said his confirmed fix was a new transmission, but that seemed a bit drastic. If it was my truck I'd have someone I trusted (unless you have the tools and equipment to do it yourself) do a fluid flush using the proper flushing solvent and a flush machine would be better because it gets out most of the old fluid, drop the pan, replace the filter, refill with correct fluid ... and add a bottle of LubeGard in Red bottle. And hope that fixes it.
2008 Vista Blue Ranger XLT