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Gremlins in my electrics again. Mk3 golf

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  • 14-11-2007 6:59pm
    #1
    johnplayerblue
    Registered Users Posts: 747 ✭✭✭


    Hey
    I posted a question sometime ago about a problem with electrics/lights on a mk3 golf which i got help with and got sorted. Thing is, the gremlins seem to be back.

    Theres a 1mth old battery in her but last night when i got home after a 50mile drive i went back out to go to town and she wouldn't start, she turned over once or twice but the battery was dead. I put it on a 12hr trickle charge last night put it in this morning and she started, drove to Athlone and when i got there i turned her off and started it again to see if she would start but no joy, Dead. What gives do you think? alternator? wiring? Any help please..?


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    #2
    crosstownk
    Registered Users Posts: 12,863 ✭✭✭✭crosstownk


    Sounds like the alternator is not charging the battery. Have the alternator tested (simple if you have access to a multimeter). It could also be that the battery is not holding it's charge, but that's unlikely (not impossible) as the battery is practically new.
    Untitled Image




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    #3
    johnplayerblue
    Registered Users Posts: 747 ✭✭✭johnplayerblue


    Hey
    Thanks for the reply. Ok, heres what i did using a multimeter. Jumped started the bad golf from a good golf and got a reading of 9.5v/10.8v at idle.

    Tested the other golf at idle and got a reading of between 13.7v at idle upto 14.5 fast idle, so i hope i can take it that my alternator is shot? i say hopefully as an alternators not so bad but a wiring problem is a different kettle of fish. Also, i should add that this is the 3rd battery in 2 years.


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    #4
    crosstownk
    Registered Users Posts: 12,863 ✭✭✭✭crosstownk


    johnplayerblue wrote: »
    Hey
    so i hope i can take it that my alternator is shot?

    From what you say it's more than likely your alternator that is faulty.
    Untitled Image




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    #5
    eringobragh
    Registered Users Posts: 3,668 ✭✭✭eringobragh


    Deffo

    Try this.

    http://www.theautobahn.com/forum/archive/index.php/t-15761.html


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    #6
    johnplayerblue
    Registered Users Posts: 747 ✭✭✭johnplayerblue


    eringobragh wrote: »
    Deffo

    Try this.

    http://www.theautobahn.com/forum/archive/index.php/t-15761.html

    Very usefull article. thanks. Also, was reading another article from another post here this morning, forget who posted it but i reckon jump starting the way we say our old men starting a dead battery might just be the casue of my problems. Well worth reading how to do things the right way.

    http://www.carbuyingtips.com/jumpstart.htm


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