An issue with the speed sensors or speedometer head is the reason.
Broken speedometer cable symptoms.
Common reasons for a broken speedometer.
When the speedometer cable is broken the needle on the speedometer will not move at all.
How a speedometer works.
The first example is if the speedometer is dead.
Speedometer needle does not move.
The speedometer is completely dead.
This is typically due to a speedometer cable that is going bad and sending sporadic data to the speedometer.
Check engine light comes on.
Worn out connecting cables are the culprits in older cars.
It happens due to a faulty sensor that cannot process the information received from the ecu.
If you hear any noise coming from the dashboard contact a mechanic to pinpoint the precise location of the problem so it can be fixed.
If you notice.
Note that it is a good idea to seek a professional in these scenarios.
In cars produced before 1990 the issue may be with the cable connected from the transmissions to the speedometer.
Symptoms of a bad or failing speedometer cable.
A speedometer on any vehicle is an important safety device that is susceptible to breaking or falling out of calibration.
Prior to the early 1980 s the speedometers used in vehicles were mechanical in nature.
It also causes the speedometer behaving erratically.
There are many possible reasons behind a faulty speedometer.
Here are some examples and how to fix a broken speedometer with the scenario in mind.
Both problems can have impact in areas of your vehicle outside the speedometer.
The culprit of most speedometer issues is the speedometer cable or housing.