I know this is a year old thread, but I'm having the same issue with my exact same 4runner. Same year, mileage etc. Once warmed up it shifts, but after ten minutes or so it wants to down shift, doesn't matter if I'm going 60-65 mph. It's as if I turned off the O/D, and it won't shift again...
I have a 1994 4Runner and the windshield washer fluid reservoir started leaking quite some time ago, and won't hold any fluid. The local dealership doesn't have a way to get them anymore, so I was wondering if I could get one from a parted out truck here. It seems as though the tank itself is...