Check the speed sensor.
If your odometer/speedometer stopped working, then you must replace the "vehicle speed sensor" located on top of the differential if your have a manual transmission.
because its not :)
No, there is no connection between losing transmission fluid and the speed odometer not working. My mother's car lost all of it's transmission fluid but the odometer still worked.
If both the speedometer and odometer stopped working it is probably the speed sensor in the transmission gone bad. If only the speedometer quit you may have to replace the dash cluster with a reconditioned unit.
What would make your speed odometer stop working after putting an alternator on? 2005 Chevy Malibu
If both odometer and speedometer are not working I would blame the vehicle speed sensor. If just the odometer isn't working the gauge cluster assembly needs to be replaced with a reconditioned one.
If the speedometer is not working but the odometer is, I would suspect the dash cluster is at fault. If both speedometer and odometer are not working I would suspect the speed sensor on the transmission is at fault.
Does your odometer work? If the speed sensor goes faulty both speedometer and odometer stop working.
If only the odometer is not functional, then the cluster is bad. If both odo and speedo are inop then you have a possible speed sensor issue.
if the cluster still lights up but the speedo still inop possible cause is the speed sensor in the transmition