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Speedo dropping on motorway and slight juddering



  Clio 172 2001 ph1
Hi Guys,

Just wondering if anyone has had the same/similar problems.

On the motorway (hasnt happened below 70) at some point in the journey the speedo drops to 0 for usually the whole journey until I come to a stop and pull away again, then it has been fine so far until I get up to 70 ish again where it is temperamental.

Also in higher gears at lower revs the car has a slight judder as if misfiring or skipping a beat. And before you say it, no I am not running the engine to basically a stall point. For example it happens in 4th at about 25-30mph when you put your foot down.

Plugged a diagnostic machine in and it says knock sensor issue. However every thread I have read on here points to it being the speedo sensor. Can anyone shed any light? Going to re-diagnose tonight as last time I deleted the code to see what happened and it still carried on.

Thanks
 
  Renault Clio 172 cup
Wit regards the speedo , I have the same problem and like yourself various threads have pointed to the speedo sensor, something I will be changing asap.

The misfire could obviously be a number of things... are you using good fuel 97 upwards? , have you changed your air filter lately?, are you running standard HT leads? etc etc.
 
  Clio 172 2001 ph1
Wit regards the speedo , I have the same problem and like yourself various threads have pointed to the speedo sensor, something I will be changing asap.

The misfire could obviously be a number of things... are you using good fuel 97 upwards? , have you changed your air filter lately?, are you running standard HT leads? etc etc.


Some useful info in this thread - http://www.cliosport.net/forum/show...edo-dropping-on-motorway-and-slight-juddering (I posted in 2 sections)

Thanks I will check all of those at the weekend. I have only had it a month so havent checked anything over yet.
 


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