buy a new car
Nothing
Definitely take apart the gauges, check and make sure all cables are intact.
there was a recall for that .call dealr to see if you qualify
Your speedometer may have failed, or the speedometer cable that connects to the transmission, or the plastic gear in the transmission may be broken.
They might be broken, check with a mechanic, its illegal to drive when they are broken.
gauge wiring may not be hooked up if they have never worked or if they have and just stopped working maybe a fuse i would check all your fuses
I have a 1991 E-150 hightop with 110k miles on it. both the gauges stopped working I had to replace both sending units and that worked
If all of the gauges stopped working there is probably a blown fuse in the right side of the console in the car or out under the hood in that fuse box. If all of the fuses are good then there is likely a bad gauge cluster or a wiring problem.
Check the gauges fuse ... may be a short, bad wire or a bad ground. Doesn't happen open but your cluster may be bad as well. NELSON
Check the fuse. It says [guages]
If the Gauges on your instrument panel have stopped working you may have had a voltage converter stop working. This device mounted to the rear of your instrument panel converts the voltage from your alternator to the voltage that your gauges run off of. You can check the fuses with a multimeter and see if both sides have voltage showing, if so then see about replacing the voltage converter.