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Thread: Juddering 1.9cdti

  1. #1
    New Member Alan/1967's Avatar
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    Default Juddering 1.9cdti

    Hi all i hope some one can help me out with this problem, When car is running on idle it starts to judder abit and noticed my lights also flicker during this but it does not do this all the time, and also my dash lights go out and the dials freeze its only happened twice but does not affect the driving of the car when i turn it off and on its fine. This is alot to ask but can anyone help please? Thanks Alan.

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    Regular Member jonnybravo's Avatar
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    Hi Alan
    I think you will find that your alternator is not initializing untill about 1300 revs per minute this is causing a poor injection quality injectors need 12 v to operate corectly.most alternators kick in at about 1200 rpm,have you tried making sure all electric units are turned off when you first start up ie heated window ,heater.lights ect.when you start try running engine at 1400rpm if this cures it then that's your problem.VX had this problem but did not replace alternator under warranty as they informed customer to "live with it" good old VX

  3. #3
    New Member Alan/1967's Avatar
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    Hi Jonnybravo,Thanks for the reply i replaced alternator in january im hoping this is not the problem will get it checked out been told it could be a bad earth but im not sure need mechanic to look at it the really only judders when the lights are on when turn everything off it seems fine, it didnt do this with the old alternator so im hoping there is not a fault with this one or its will need replaced also thanks again Alan.

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