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Cutting Out And Speedo Malfuntioning


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#1 lucus.j

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Posted 25 September 2013 - 07:27 PM

i have a 1.8 mk1 focus, since i have owned it the speedo occassionally drops to 0 and you can feel a noticeable power drop when this happens and when i put my foot on the clutch coming to a junction it will cut out on me?? the lcd display will also sometimes just go blank or the speedo will just do its own thing going from 0-140 waving about all over the place. any ideas?



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#2 mintalkin

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Posted 25 September 2013 - 07:40 PM

i would say the speed sensor is playing up, check the wiring for damage but you may need a new sensor.



#3 Stoney871

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Posted 25 September 2013 - 08:13 PM

Either the speed sensor or condensation on the circuit board in the speedo cluster.

#4 jeebowhite

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Posted 26 September 2013 - 01:34 PM

there was also the faulty cluster from your car's era, so worst case, you may need a new one.



#5 lucus.j

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Posted 05 October 2013 - 12:20 AM

thanks everyone diagnosed as speed sensor so far, its getting round to doing it now



#6 Stoney871

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Posted 05 October 2013 - 01:06 AM

The speed sensor does appear to be a common MK1/1.5 fault.

I had it on my old car and a couple of friends locally had it too.

A bit of a pig to swap but the replacement units are pretty much unlikely to go again.



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