Bad speed sensor is a likely culprit
The odometer gets its signal from the speed sensor, so if the (tailshaft) speed sensor is bad then the odometer obviously will not work
If the speedometer and odometer are both not working, I would blame the speed sensor. If only the speedometer does not work and the odometer does work, the cluster is bad.
If the speedometer and odometer doesn't work I would suspect the VSS (Vehicle Speed Sensor) is faulty.If the speedometer doesn't work but the odometer does, I would suspect the gauge cluster is at fault.
Does your odometer work? If the speed sensor goes faulty both speedometer and odometer stop working.
When those things on my 92 B250 did not work, I replaced the speed sensor located on the transmission tailshaft and that fixed the problems. Hope that helped! Mark When the speedometer and odometer did not work in my 1990 B250, I had to replace the speed sensor, instrument cluster (speedometer) and replace a tiny gear (odometer) in order to get them working properly
You need to replace the speed sensor on the rear of the transmission.
If both the odometer and the speedometer do not work it may be the speed sensor in the transmission is bad. If only the odometer does not work it is probably a bad cluster.
Probably a faulty speed sensor, it is mounted on the rear of the transmission on the drivers side.
If both the speedometer and odometer are not working I would suspect the VSS (Vehicle Speed Sensor) is at fault. If the speedometer doesn't work and the odometer does, I would suspect the instrument cluster is at fault.
what can cause my speed odometer to stop working, it would work awhile, than stop, now not at all
The gauge itself may be dead. I have seen one dead speedometer in a dash in 30 years, and that one was the old mechanical kind.