Your vehicle speed sensor. I Believe it is located near your transmission under the car. fairly easy to replace
A speedometer that loses response time but gets up to the speed of the vehicle probably has a problem with a gear slipping inside the speedometer mechanism. This sometimes happens in older vehicles. The speedometer cable may have to be replaced to fix this problem.
I have the same problem; so far the problem seems to be in the transmission. Maybe the gear that drives the speedometer gear, won't know without taking transmission apart.
I have noticed this problem as well. The next time you put on tires, go to a larger size.
There is no fuse just for the speedometer. If the speedometer is not working, you may have a problem in the dash gauges cluster, or a vehicle speed sensor problem.
Cruise will NOT work if the speedometer has a problem
If a 1992 Honda Civic's speedometer is erratic, the problem could be the speedometer cable. It could also be the speedometer sensor malfunctioning. Check both components carefully.
Well both of those are from sensors in the wheels so maybe make sure you are using the correct wheels.
Could be a loose ground wire
There might be a problem with the cable.
check the wiring to the speedometer. Check the sending unit as well. If the problem is internal then the speedometer will have to be replaced.
Yes and so will a tire and/or rim change. To correct the problem you will need to reprogram the ECU to compensate for the new rear-end.
Most likely speedometer cable