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bulbs keep going

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  • 22-09-2006 9:30am
    #1
    stifz
    Closed Accounts Posts: 315 ✭✭


    At a loss to figure out why the bulbs keep going in my car.. i've repaced the rear brake lights at least 4 times in two years, the spots twice and the park lights at least 3-4 time also? Now the speedometer light is gone on one side along wit the gear stick panel & some in the dash?

    Any idea's what causes this? Is it worth while replacing all the fuses??


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    #2
    DublinDilbert
    Registered Users Posts: 5,379 ✭✭✭DublinDilbert


    possibly sounds like a fault with the alternator, putting an excessive voltage out, and reducing the life of the bulbs... even 1 or 2 volts too much would greatly reduce the life a bulb...

    If you have a mutli-meter, or know someone with one, you can monitor the voltage at the terminals of the battery, with the engine running, also rev the engine. The battery voltage should be between 13.5 & 14.5V, no matter what the engine speed is.


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    #3
    Henry Ford III
    Moderators, Business & Finance Moderators Posts: 17,711 Mod ✭✭✭✭Henry Ford III


    Check the voltage regulator. As poster above says it's part of the alternator.


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    #4
    Mr.Diagnostic
    Registered Users Posts: 937 ✭✭✭Mr.Diagnostic


    Hi,

    Could be just crap bulbs, the motor factors are mostly stocking cheap ones. Try and find "Osram" bulbs.

    HTH


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    #5
    Stephen
    Registered Users Posts: 18,484 ✭✭✭✭Stephen


    VW Golf mk 4 by any chance?


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    #6
    bazz26
    Registered Users Posts: 51,240 ✭✭✭✭bazz26


    Stephen wrote:
    VW Golf mk 4 by any chance?

    My thoughts exactly but if the light on the speedo is gone also then it sounds like there is an overload somewhere. Possible voltage problem as others have suggested.

    A job for an auto spark if your not familiar with car electrics.


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    #7
    Wishbone Ash
    Registered Users Posts: 24,993 ✭✭✭✭Wishbone Ash


    stifz wrote:
    i've repaced the rear brake lights at least 4 times in two years,
    Four times in two years- you lucky sod. I have to replace the brake light bulbs in my MB W210 every 2 months or so. I failed the NCT lately because one went on the way into the test centre. Always carry spares now ;).


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    #8
    damo605
    Closed Accounts Posts: 201 ✭✭damo605


    That's not bad in fairness - If you had said a bulb per week I would have guessed it was a BMW :rolleyes:


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