Thank you JFN1 for your response. It sounds like you are fairly confident from hearing my description that this is in fact the problem. My next question would be that if in fact this is a compromised shift solenoid, shouldn't I be getting some sort of a computer code message regarding the problem?
Tom in Wisconsin
Started after a 1000 trip. Initially it seemed to jump in and out of od at highway speeds but today when I drove it refused ever to go into od at all. In addition, at low (40mph) city speed, it started to slip and rev a little while in od. I now am suspicious that continuing to drive (even at low city speed in 3rd) it is somehow making it worse. I think I will leave it parked for now until I can tear it apart. Thanks again and please add anything else you might have with regard to this problem.....for example if driving in 3rd with a bad od solenoid will start wrecking the other gears (solenoids) sequentially! Thanks and happy halloween! Tom in Wisconsin