you will need to change out the speedometer cable or if your lucky its just loose and fell off the back of the dash depending on the car make and model
you need to change the speedometer cause if your odometer is counting then speedometer should be working too. make sure your speed gear its working its in the side of the transmission The odometer and speedometer read off of the same signal. If one works, the signal is ok and the other gauge is bad.
You need to replace the speed sensor. It sends a signal to the speedometer and also sends a signal to the transmission on when it should shift.
AÊ speedometer cable leak at the transmission usually signifies that you have a worn seal. There are two seals in this area, one or both might need to be replaced.
You need to replace the speed sensor on the rear of the transmission.
need diagram for wiring for 1986 transam
Need make and model. Some are mechanically controlled; others will require reprogramming of the ECM.
You will need to remove the instrument panel cover. Remove the retaining screws from the speedometer. The lightbulb will be on the back of the speedometer.
To fix the inoperative speedometer you will need to replace the speed sensor. It is located on the side of transmission and has 2 wires coming out of it.
VSS ( Vehical Speed Sensor ) located on your transmission
If the overall diameter of your tire and wheel combination is different then yes, it will change. Use this link to calculate the differences and the changes you will see. The PCM can be reprogrammed to reflect changes that you make. www.rims-n-tires.com Then click on the "find what fits" It will give you all the info you need.
If you can"t see how fast you are going, then you need to change the speed sensor located on the transmission. If the miles are not turning, the dealer will try to only sell you a complete instrument cluster but you can change out the gear inside the cluster to make the miles start turning again. You can find the gear online.
If the transmission a computer shifting transmission, then you need to hook up the eltronic speed sensor to be able to read speedometer. The gear reading is on the dash column, in which a wire hooks to the steering column.