Speedometer and transmission acting up


#1

2002 Chrysler Town and Country. My speedometer jumps wildly and then goes clockwise and rest without working. The trany hesitates and has a jerking when sitting in drive, and slow to shift into 2nd gear. We have replaced speed sensors, wiring and connectors, and now are thinking the chassis control box may be next. Help?


#2

Could be that, but it might be the speedometer actuator too. That’s the gadget that actually moves the needle to indicate the speed. A Chrysler dealership might have a Chrysler specific scan tool that can test the speedo and determine if the problem is the actuator or the control box. Worth asking about anyway. My guess is it is the actuator.