Older cars have a cable, which is turned by a gear at the rear of the transmission, and this operates a mechanical speedometer. Modern cars have an electronic sensor in the gearbox which is linked by wire to an electronic speedometer.
Yes. The speedometer reads off the transmission tail shaft, and the speedometer is geared (in a mechanical system) or programmed (in an electronic system) accordingly.
I have an 82 300sd and the speedometer is electrical
The speedometer cable (which runs from the transmission to the dashboard) has snapped. This is a two-piece cable, and the one-piece cable in later Proteges will not work. I had the transmission replaced, and the cable could never be fit in properly. This is a mechanical speedometer, so you would have to change the entire speedometer part of the instrument panel to use a magnetic/electronic speedometer.
The speedometer in a 1988 Toyota Corolla is cable-driven. This means it uses a mechanical cable connected to the transmission to measure the vehicle's speed, rather than relying on an electronic sensor. This design was common in many vehicles of that era before the widespread adoption of electronic speedometers.
I'm not 100% certain, but I believe that model year still uses a mechanical speedometer, in which case, it's likely either your speedometer cable or faulty gears in the speedometer itself. If it is electronic - which is possible, as again I'm not 100% certain that the 95 uses a mechanical speedometer - and the rest of your gauges are working, there'll be a speed sensor on the transmission with an electrical pigtail running to it... faulty sensors or faulty wiring are the probable causes.
The speedometer cable on a 2008 Toyota Highlander is integrated within the vehicle's electronic system, meaning it doesn't have a traditional mechanical speedometer cable like older vehicles. Instead, the speedometer relies on a vehicle speed sensor (VSS) located on the transmission. This sensor sends electronic signals to the vehicle's computer, which then relays the speed information to the dashboard display. If you're troubleshooting speedometer issues, it's best to check the VSS and related wiring.
The speedometer is typically connected to the vehicle's transmission or wheel hub, depending on the type of speedometer system used (mechanical or electronic). If you changed the front brake system, it's possible that the speedometer cable or sensor was inadvertently disconnected or damaged during the process. Check the connections at the transmission or wheel hub for any loose or broken components. Additionally, ensure that the brake system installation did not interfere with the speedometer wiring or components.
If it's old enough to have a mechanical speedometer, it'll be in the speedometer itself. If it has an electronic speedometer, there is no speedometer gear - to recalibrate the speedometer to match something like, say, changing tire size would require changing the parameters in the engine ECM.
Back in 1991 I THINK that they still used a mechanical cable from the transmission to the speedometer. Only later did they change to electronic readout, but I'm not sure what year. It sounds like the speedo cable needs to be lubricated, possibly replaced.
If it's a stock transmission, the shift linkage is mechanical.
The engine computer controls a electronic solenoid on the valve body. There is not a mechanical governor in a 1998 Ram transmission.The engine computer controls a electronic solenoid on the valve body. There is not a mechanical governor in a 1998 Ram transmission.