Odometer and trip odometer not working.

thriftydutch wrote:
I have a 1990 Dodge B 250 5.2 litre engine. Last summer on a trip the odometer and trip odometer stopped working for about 100 miles. Then suddenly it started working again for a day and then it stopped working for good. Has anybody had any experience with this problem in the past on this vehicle.

It sounds like your transmission speed sensor has packed it in. It's been years since I worked on one of these but it should be a sending unit on the side of the transmission that tells the speedometer how fast you're going. It's about a $35 or so part. I'm pretty sure it can be replaced with the transmission in the vehicle. If it's what I think it is, the transmission doesn't need to come apart.