Is you check engine light on? If so have codes pulled. Sound like your tranny is in what is called limp mode, which the vehicle is still drivable to get it to a shop, you just cannot go faster than about 25mph.
It could possibly be the Turbine Speed Sensor and the Output Shaft Speed Sensor. The cost for the 2 of them should be under $40 and here are there locations....
Wednesday, July 9th, 2008 AT 9:56 PM