Considering the speedometer shows speed and the car doesnt move, it sounds like a broken drive shaft. Seems odd since those normally go bad on the road, but the reason I say this is the speedometer sensors on 99% of cars are afixed to the final drive of the transmission, right where the axles go in. the tranny is not at fault if the car registers a speed. It has to be somwhere between the output of the tranny and the wheels. Good Luck
it means the circuit of car is short........
If the speedometer needle is going crazy and not working properly, it is probably the speedometer mechanism that needs to be replaced. It could also mean the vehicle is having a transmission slippage problem if the needle is bouncing back and forth.
You have a failure in the communication system on the van. It will require a scan tool to diagnose.
I guess you mean the Autobahn. You just drive on it, like you drive on a Highway.
Assuming you mean 2001 S-10, it doesn't have a speedometer cable, it is electronic.
On older vehicles, it would usually mean that the speedometer cable is broken or disconnected. On newer vehicles it would probably be a computer problem.
Is it a 12 valve engine or 24 valve? What do you mean by speedometer sensor? Do you mean Vehicle speed sensor? If so why do you want to change that?
I think it's the maximum speed you can drive in each gear... I've seen it on manual transmission models up to the late 80s.
your car is broken
If you put the stock tires back on and it goes out, this would mean that the system isn't damaged. You probably just have to calibrate the speedometer to accomodate for the bigger tire diameter. I'm pretty sure that this can be done with a hypertech programmer or similar.
If the speedometer and odometer both quit I would blame the speed sensor. If only the speedometer quit I would blame the instrument cluster.
To test drive a car means to take a car for a drive and see if you like the way it handles the road or just to see if you like the car :)