Broken tooth in speedometer head. Replace speedometer head
It is non-servicable, so repair requires replacement of the speedometer/odometer assembly.
If the speedometer and abs light are not working then you have a speed sensor problem. If the speedometer or odometer are not working then you will need to take it to the dealership and have them send it off for repair.
To fix the mileage odometer on your 1995 Ford Ranger, first, check the speedometer cable for any damage or disconnection, as a faulty cable can affect the odometer. If the cable is fine, you may need to remove the instrument cluster to inspect the odometer gears for wear or breakage. Replacing any damaged gears or the entire odometer unit may be necessary. Always consult a repair manual for specific disassembly instructions and reassembly procedures.
Need to figure out what's wrong with them, first.
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.
Stepper motor for speedometer has a broken gear in it, causing unpredictable operation. If the odometer is still working, then the speed sensor is OK. Instrument cluster needs repair.
To repair the speedometer and odometer in a 1991 Volvo 940, first, check the vehicle's speed sensor, which may need cleaning or replacement if faulty. If the speedometer gauge itself is malfunctioning, you may need to remove the instrument cluster and inspect the connections and solder joints for damage. For odometer issues, often the gears inside the odometer mechanism are worn and may require replacement. If you're not comfortable with these repairs, consider consulting a professional mechanic.
Need to know what is wrong with it. If both the speedometer and the odometer don't work, I would suspect the VSS (Vehicle Speed Sensor) located in the back end of the transmission is bad. If only the speedometer doesn't work, I would suspect the instument cluster has to be replace with a reconditioned one from your local Chevrolet dealer. Contact a dealer for a price.
There are two possible actions: 1) Replace the speedometer head assembly, because that is where your problem is. 2) Ignore the broken odometer and forget about it. The speedometer and odometer are one assembly. The same input that drives the speedo also drives the odometer, so you have a problem in the head itself.
Disconnecting the speed sensor stops the speedo and odometer. The odometer has to be changed by a certified speedo repair shop.
check the vss located on the tailshaft of the transmission for the speedometer issue the odometer is figured out based on the speedometer also so it will quit as well. this sounds like either the sensor is bad or a short in the wire from it The cord for the speedometer came undone from the transmission or the gauge cluster is bad
To repair the odometer on a 1990 Plymouth Sundance, first, remove the instrument cluster by unscrewing the necessary screws and disconnecting the electrical connectors. Once the cluster is out, take apart the speedometer assembly to access the odometer gears. Inspect the gears for any damage or wear; if they are broken, they may need to be replaced. After repairing or replacing the gears, reassemble the speedometer and reinstall the instrument cluster in the vehicle.