2007-09-07 17:20:36 · 9 answers · asked by sharifjunaid 3 in Cars & Transportation ➔ Other - Cars & Transportation
the ones now days work off a speed sensor that mounts in the transmission,and sends a signal to the computer and this also travels to the speedometer head and it has a small motor in it that turns the speedometer,there more complicated than the use to be,all they use to have was a cable that ran from the transmission,up to the speedometer,and this turned everything,now its all computer controlled,good luck ,hope this helps.
2007-09-07 17:28:56 · answer #1 · answered by dodge man 7 · 1⤊ 0⤋
Modern cars use an electronic module in the transmission to drive a speed to current convertorr that drives the display. Older cars use a mechanical system where a flexible drive shaft spins a magnet in the back of the speedo. This drags an aluminium follower round to move the pointer against a return spring
2007-09-07 20:02:52 · answer #2 · answered by The original Peter G 7 · 0⤊ 0⤋
Usually a cable with a gear goes into top of tranny gear spins the cable which runs to the speedomoter which registers the speed
2007-09-07 17:27:06 · answer #3 · answered by Anonymous · 0⤊ 0⤋
A cable runs from the transmission to the dashboard on older cars
on newer cars it is done by GPS
2007-09-07 17:36:03 · answer #4 · answered by Anonymous · 0⤊ 1⤋
they are usually driven off the transmission.via a cable which runs to the speedometer.some are electrically activated through a device called a trans ponder . hope ths is of any use to you.
2007-09-08 02:37:00 · answer #5 · answered by the rocket 4 · 0⤊ 0⤋
there is a speed censor usually on top of the transmission.
2007-09-07 17:23:23 · answer #6 · answered by Anonymous · 0⤊ 1⤋
it tells you how fast you are going silly
2007-09-14 16:31:42 · answer #7 · answered by Anonymous · 0⤊ 1⤋
dodge man is right
2007-09-14 15:04:27 · answer #8 · answered by nokomp 2 · 0⤊ 1⤋
YEAR, MAKE AND MODEL ??????????????
2007-09-11 10:12:09 · answer #9 · answered by Anonymous · 0⤊ 2⤋