Needs new speed sensor or if it has a cable to the speedometer it needs to be replaced along with the housing.
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.
the spring in there is just out of whack...its not expensive to get it replaced I don't think. Mine does the same thing
The speed sensor is located in the speedometer assembly, at the back of where the speedometer needle connects.
the needle will have a magnetising pull by steeling the magnetic energy from the magnet
Round and round for a hen, back and forth for a rooster
I had 91 crx with the rpm needle would jump around sometimes. Then my distributor went out and I replace it and the problem did not come back. ---------- The speedometer cable probably needs to be lubricated with graphite powder. Don't know how to access the cable though. I have the same problem on my 94 si, but strangely, the odometer does seem to be working fine.
They have to see what is causing this problem. And they will try to fix it.
Rub the needle across a magnetic surface...always in the same direction, don't go back and forth. This will magnetise the needle. Then float the needle in a dish of water. And presto you have your own compass
it's in the dash, the speedometer cable runs the speedometer and it connects to the back of the speedometer and it runs down to the back of the transmission case.
it depends on what it is doing, does it not work at all? or does it jump around? could be the plastic speedo gear in the transmission, or it could be your speedometer itself. i have had a problem with mine and i need to replace my speedometer, the back assembly has gone bad. it jumps around. mazurlaser@aol.com
It usually means that there is something wrong with the fuel gauge itself. It's like when the speedometer is out, just get i checked by the car manufacturer
Ignore this, found the answers. >.