on the motorway the other day,i got to 60mph and my speedo reduced itself to 25mph and has been there ever since,unless the engine is off also the mileage counter is clocking itself up a simple trip to the shop could be 4 miles according to my clocks!!anyone help?oh yeah,its an m reg 1995 punto 55 s

:wave: Welcome to FF

Check out the Punto section, one of the punto peeps over their will be able to help you.

Hi and welcome to FF! :wave:

Try asking your query in here:

https://www.fiatforum.com/punto/

I'm not sure, but I think the Punto uses and electronic speedo? If it does you may have a faulty speedo head unit or the sender unit on the gearbox is defective. Ask in the Punto section to see if it's a known fault.

Ive had this mech apart (a little project of mine to put an electronic speedo into an old mechanical speedo car), and I can confirm that its electronic, theres a sensor on the gearbox that sends electrical signals to a simple circuit board in the dash clocks housing which drives a motor which then advances both the mileometer, and by a process of rotating magnetic forces, moves the speedo needle.

If for example the mileometer reads as it should, but the speedo miss-reads I would have said that the speedo mech was getting stuck (it is extremely delicate with a tiny coil spring), but as your car seems to be effected on both counts I would first try swapping out the sensor on the gearbox. (Could equally also be the wiring from the speedo sensor [check for breakages or fraying of the insulation] or the circuit board mentioned above or the small electric motor). As far as I remember the reader is around £15. Hope this helps.