Want this question answered?
The speedo itself or the wiring to the speedo can be bad. The Speedo and all the dash light flickers. Trans. slip, but when i unplug the speed sensor the trans work ok. I change trans. 2 times, speed sensor, alternator, battery. The problem not gone. I need help
there is 2 of them depending on what type of tranny you have, the MAIN sensor that makes the speedo work is located on the rear transfer case and NOT on the tranny itself. the other is a much smaller sensor that does go on the tranny but that ones DOESN'T effect your speedo. if you speedo is not working then its going to be the BIG sensor in the rear.
replace your speed sensor
you replaced speedo, so try replacing speed sensor
Tach is driven by a motor signal, speedo is from the trans the sensor is bad on the transmission
Could be in the trany sensor/gear or the speedo itself
There are several things that can cause your speedometer not to work. Begin by connecting a new speedometer cable. Make sure the speed sensor is operating properly.
by spanking it
Speedo sensor is bad. Located on top of the transmission, right hand side.
More than likely, its your input and output speed sensor, If your speedo does not work, I can guarantee that is your problem..
there are 2 ,the ones on the front brakes if you have ABS and the one inside the transmission that usually gives the speedometer the drive indication.
go on you tube it will give you the answer faulty scorpio speedo