The driver checks the average speed of the car, which is the distance per hour is going. Average speed is the constant speed something is traveling at.
The speedometer on a 1996 Nissan Altima is located on the instrument cluster, directly in front of the driver. It is typically positioned between the tachometer and other gauges, such as the fuel gauge and temperature gauge. The speedometer displays the vehicle's speed in miles per hour (MPH). To view it, simply look at the dashboard while seated in the driver's seat.
Check the cable to see if it is connected if all is well you could possibly need a new one In Ford's..sometimes the speedometer cable might need lubed as it gets older instead of replacing the whole speedometer. Outside the passenger compartment firewall inside the engine compartment under the hood near the driver's side, you might see where the cable comes out and connects to the cable going to the wheel. A lot of times you can disconnect this connection and drop oil down the cable and that will solve a speedometer which varies while driving.
Timer is not a speedometer, because speedometer is used to measures the instantaneous speed of a land vehicle, while timer is a specialized type of clock.
Check the batteries (if any), or check the wires. If both are fine, then check for driver updates.
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Broken speedometer cable.
Hand it to him. He will be happy to take the evidence while his partner takes you into custody and reads you your rights.
start with engine off. press and hold that speedometer resetter while starting engine, check engine light will flash a few times then disappear.
The instrument cluster is located on the dashboard of a vehicle, directly in front of the driver. It typically houses essential gauges and indicators, such as the speedometer, tachometer, fuel gauge, and warning lights. This design allows the driver to easily monitor the vehicle's performance and status while driving.
The speedometer of a car indicates the current speed at which the vehicle is traveling in miles per hour (mph) or kilometers per hour (km/h). It provides the driver with real-time information to help them maintain a safe and legal speed while driving.
Assuming this happens while you are moving you probably need to replace the speedometer cable.
Possibly a wheel sensor, VSS or other problem. Check the computer diagnostic code to find out what's going on.