How do I repair my speedometer on my 2000 plymouth grand voyager. The speedometer does not work and the odometer has not advanced since this trouble began. The trip meter and the mpg meter above the rear view meter always reads "0". every now and then as I am driving down the road the speedometer pegs out and the engine hesatates or cuts out for a second or 2. I have replaced the sensor in the transmission, spent alot of time looking for shorted wires, blown fuses and bad connections.