Try replacing the speedometer switch on the transmission.. that's probably your culprit.
w to fix speedometor on 2000 rav4
Stop driving it
You would fix it by replacing the instrument cluster. The speedometer itself may not be faulty, it is more likely to be a problem with the speed sensor.
Plastic explosives.
You can fix the speedometer in your 1994 Oldsmobile 98 by replacing the speedometer cable. If changing the speedometer cable does not fix your speedometer you will need to replace the entire speedometer.
somebody would have to ask my dad that question. hahahahahahahahah
how to fix speedometer for Toyota mr2
You have either a short to ground or short to power somewhere. You can either trace the harness wiring and repair it, or replace the harness outright.
The most assured way is to fix the problem. Other than that, if you're not going to have a computer with the software hooked up, is to disconnect the batteries for 15 minutes, then reconnect them.
This is a common problem ,check your fuses.
I need to fix the odometer and speedometer in a 97 ford explorer
Send to a speedometer repair shop or replace speedometer head