Defender Electrical Issue





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  1. #1
    Join Date
    Mar 2013
    Location
    Pretoria
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    31
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    Default Electrical Issue

    Hi Guys!

    Issue with my Defender 90 Td5 2000 model that I cant figure out

    1. The fuel gauge drops (as if losing power) for a few seconds and then goes back up again. This only happens when the temperature is normal (ie not cold). When this happens and I apply the brakes, it immediately goes back up.

    2. A strange smell has come from the battery when this happens. Took the multimeter on a drive and noticed that the charging jumps to 18V when this happens . So overcharging the battery?

    The Indy that I had it with said it is a loose connection somewhere. I think it is more serious than this. Maybe alternator starting to pack up?

    Any advice would be much appreciated!

  2. #2
    Join Date
    Mar 2008
    Location
    De Wildt
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    56
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    34,610
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    Default Re: Electrical Issue

    Voltage regulator on alternator. Get it sorted QUICKLY, the ECU won't like this type of abuse.
    2012 Jeep Sahara Unlimited 3.6 V6
    Percivamus

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  4. #3
    Join Date
    Oct 2015
    Location
    Romania/Hungary
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    52
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    554
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    Default Re: Electrical Issue

    Check the battery clamps to be well tightened and not playing on the terminals, when the voltage goes up so much it means that the alternator misses the battery's internal resistance which acts as a voltage "damper", that around 18V is a normal alternator's output without battery connected... if the clamps are tight it's possible that the battery has intermittent internal interruptions IMO
    2000 Discovery Td5 ES manual, tuned

    Hawkeye v.6, Nanocom EVO,
    VDM UCANDAS, oscilloscope


    i DON'T ANSWER TO TECHNICAL QUESTIONS IN PM'S

    ALL MY ADVICES ARE BASED ON MY OWN EXPERIENCE AND MY WAY OF UNDERSTANDING THE DESCRIPTION AND OPERATION OF SYSTEMS... I'M NOT A LAND ROVER SPECIALIST JUST AN ADDICTED ENTHUSIAST

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