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Thread: alternator

  1. #1
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    Default alternator

    driving home in my vectra cdti 150 and the battery light came on when i got home i stopped the car and restarted it and the light had gone out when i looked in the book it said alternator was not working,can anybody let me know what i should do is it worth putting a new one on or could it of been just a glitch cheers.

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    Check the voltage across the battery when running, should be about 14V. If less than this i.e 11 - 12V then probably alternator.
    You can get a cheap 1 from ebay and there's a 'how too' to replace.

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    Alternator likely to be fubar'd I'm afraid.

    Exactly the same situation on my Signum.

    Do a search - plenty of info.

    It's awkward to change but not impossible. MAke sure you've a few handy swearwords as you'll probably need them.

    I paid about £150 from a Motorfactors

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    thanks for all your help will i need one straight away.

  5. #5
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    depends how much juice it's putting into the battery.

    Get it tested m8. Dont forget to rev it up when testing to get a proper reading

  6. #6
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    P.S the battery light coming on can also be a symptom of an overcharging alternator

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    Quote Originally Posted by Exclusive BV View Post
    P.S the battery light coming on can also be a symptom of an overcharging alternator
    which will fry the cells in the battery costing you more

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    thanks all i will test it tomorrow i was hoping it was just a computer glitch with the light going out.

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    Daughter had the same problem, got one off Ebay and still working fine and a lot cheaper than dealer prices

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    thanks for all your help got one today £110 fitted it in about half hour with alot of swearing all is good.

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