Speedometer stays at zero while driving

1. check all fuses
2. get the PCM scanned
3. get it serviced.

You need to grease the speedometer cable

Unless you have a totally stripped-down Eldorado, your speedometer is most likely ELECTRONIC (probably even has a digital readout).
Check your Trip Computer. Has it stopped reading fuel economy, distance to empty, etc.?
Is your odometer also not adding miles as you drive?
If affirmative to all of the above, replace your SPEED SENSOR, and you'll be all set :)

Is it a digital speedometer?

If so there may be a wire harness that is loose that connects all those, if it happened after fixing the 4wd

I’m happy to assist further over the phone at https://www.6ya.com/expert/robert_54ae41aaaffbab00

Find the speedo cable at transmission and see if it is loose.

you can take a auto mileage correction tool to adjust your speedometer correctly.

OK, have the engine codes scanned to determine what system to look at as far as the engine.

Then, look around the transmission VSS or vehicle speed sensor to see if a loose wire or connection at the harness is causing the lack of speedometer reading.

Maybe try to wiggle the harness a bit to see if on the next drive the speedometer function returns.


If the VSS is changed and connected to the harness and the problem still exists, the wiring should be checked for continuity by a technician.

Check output speed sensor to see if functioning correctly.If working correctly ,suspect an Instrument Panel Control Module or an ECU issue .

HI, the speed sensor is damaged. replacing the sensor will fix this issue.

The gear is stripped either on the speedometer or at the tranny.