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Thread: Lights flickering

  
  1. #1
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    Exclamation Lights flickering

    Hello guys, wonder if u could help with this problem.

    I have an astra mk4, 1.7 dti:

    When i start my engine, then turn on my lights, they flicker. I don't put my stereo on or anything, when i rev the engine the lights stop flickering, then start to flicker again when i take my foot off the pedal.

    All my lights flicker including the interior lights. After a while of driving, the lights work fine (no flickering).

    I checked my battery and alternator with a tester batt/alt tester from maplins. The battery seems fine but the alternator says its overcharged????

    Any help much appreciated....
    Coming Soon......

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    What voltage is it charging at?

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    Quote Originally Posted by Enigma ??? View Post
    What voltage is it charging at?
    Sorry don't know mate. I could ask a friend to check it out for me. What do u think the problem might be????
    Coming Soon......

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    I would say the alternator is about to pop it

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    D'oh!!

    Thanks for the reply mate. What would happen when the alternator does go. Would the car not start?
    Coming Soon......

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    it would not start at all!

    go to a garage and get one priced up, should not cost THAT much to get replaced!

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    Just out of curiosity, how can u tell if its not the battery thats playing up?
    Coming Soon......

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    Charge voltage which would be from 13volts to 14.5volts any higher or lower and the alternator is gone mate

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    Question

    I'm going to borrow a volt meter from my mate, can any one give me a guide on how to test the battery and alternator for a diesel engine (if there is any difference from petrol).

    The maplin battery/alternator tester only has LED's light up... not very helpful!

    Many thanks for the replies above
    Coming Soon......

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    This happens with mines sometimes too.. and it idles like its on cams.

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