Mechanic to the forum – Speedo has mind of it's own

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  • Mechanic to the forum – Speedo has mind of it's own
  • Premier Icon scandal42
    Subscriber

    So Mrs Scandal is having a car related problem, speedo has gone a bit doolally and shows far faster speeds than are actually being achieved (doing 30ish and showing 80)

    This is now constant and is amongst other things probably illegal.

    Any ideas what this could be, it’s not like it’s died entirely but is just constantly incorrect, rev counter has been that way for quite a while but never bothered her.

    The car is an old 206, is it fairly common or easy to diagnose?

    Any help much appreciated

    Premier Icon sazter
    Subscriber

    My Transit Connect did this, used to just keep climbing and only stop when it reached the end of the dial.

    I sent the console away to be repaired, cost £100 IIRC.

    Speedo has mind of it’s own

    There used to be a creepy guy at our local swimming pool in the 70’s with very same problem.. 😯

    Premier Icon scandal42
    Subscriber

    My Transit Connect did this, used to just keep climbing and only stop when it reached the end of the dial.

    I sent the console away to be repaired, cost £100 IIRC.

    http://www.cartronix.co.uk/ by any chance?

    Taff
    Member

    I had the same problem on my old 306 until it completely died. Just got a second hand cluster and put it in. If it was flickering I would have said it may have been an earthing problem but with the rev counter going I would say the cluster is on it’s way out. Could be worth trying the earths first. You will need to softboot the car when you reconnect the battery.

    How old is the car?

    I’ve seen this before when the voltage regulator for the dash cluster is failing.

    Premier Icon sazter
    Subscriber

    scandal, yep think it was them. Worked out cheaper for me than buying a 2nd hand cluster and getting it re-programmed to the van, something to do with the way Transits store the data, it’s all in the cluster, not the engine.

    Premier Icon scandal42
    Subscriber

    It’s 1999 or 2000

    Thinking i’ll try a second hand cluster off Ebay, is it easy to remove and fit?

    Not able to look at youtube vids at the moment.

    Premier Icon sazter
    Subscriber

    My connect was easy, undo a few screws, release 2 clips to remove 2 wiring looms.

    trail_rat
    Member

    when you say old…. do you mean nearing end of life old…..

    if so – cheap fix – bung an old GPS in the window.

    I did that with my frontera when the speedo started playing funny buggers after 2 years – no way i was spending money on it ….

    Premier Icon scandal42
    Subscriber

    when you say old…. do you mean nearing end of life old…..

    if so – cheap fix – bung an old GPS in the window.

    I did that with my frontera when the speedo started playing funny buggers after 2 years – no way i was spending money on it ….

    Interesting idea, I’ll have a chat with her to see what she thinks, could be a pain in the arse having to remove every time she gets out the car though.

    Premier Icon Cougar
    Subscriber

    If the speedo is massively overreading, would that also mean that the odometer is similarly affected? Ie, it’ll read higher mileage than is actually correct?

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