a dead battery
my ford 2001 ranger had the same thing happen to me i sent to the ford delear for repair and it was a missing fuse so check all fuses
Yes , I BELIEVE the last year for a speedometer cable on a Ford Explorer was the 1995 model year so the 1991 Ford Ranger would definitely have a speedometer cable
sounds like a broken speedometer cable.
The gears in the speedometer are stripped. If the odometer is working then you have input.
TCM Malfunction, And/Or Speedometer Sensor Malfunction.
If it's an electronic (analog) speedometer needle, you probably have a problem with the dasboard grounding.
i would have to bet on the speed sensor
The speedometer on a 1996 Honda Accord EX is the pulse variety. It is likely that the teeth on the speedometer gear are not meshing properly.
Faulty vehicle speed sensor.
If the speedometer continues to work - probably a broken gear etc. in speedometer head and probably will have to be replaced. If speedometer does not work -- probably a broken speedometer cable
alternator