more electrical gremlins | FerrariChat

more electrical gremlins

Discussion in '308/328' started by tatcat, Aug 13, 2010.

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  1. tatcat

    tatcat F1 World Champ
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    Sep 3, 2001
    11,013
    panama city beach FL
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    rick c
    went to fill up the car weds. no problems. starts fine. everything working properly. go out yesterday, turn key, dash indicator lights ok. turn key to ign, nothing. dash lights die. check battery which is less than three months old, full charge. drop dash panel, try again. relays all clicking happily but no turn over. try to pop up headlights. no go and oddly tach and speedo needle bounce around. i recently replaced the soleniod. i suppose i'll start looking there. perhaps an open circuit in the soleniod? who knows. i hate this stuff.
     
  2. BillyD

    BillyD Formula 3
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    Feb 28, 2004
    1,837
    Pacific Northwest
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    Bill
    #2 BillyD, Aug 13, 2010
    Last edited: Aug 13, 2010
    My guess is the battery connection at battery, starter, or ground, or a dead battery. Why'd you replace battery was it also dying after x time of non use?
     
  3. tatcat

    tatcat F1 World Champ
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    Sep 3, 2001
    11,013
    panama city beach FL
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    rick c
    battery was replaced as routine. it was seven years old. i agree the primary connections are a starting point. checked the battery terminals. all tight and clean. started to raise car today. tapped on soleniod and starter to perhaps free any stuck contacts. no response. when i recently replaced the soleniod i removed and cleaned the engine to frame ground strap. next will inspect battery to frame ground although i think i may have just done it. i hate this stuff.
     
  4. BillyD

    BillyD Formula 3
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    Feb 28, 2004
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    Bill
    If the battery is charged and the dash lights (and others,turn headlights on) go out when you try to crank the engine then its connection problems. Battery post to cable, to ground, to positive cable at starter, frame to engine.
     
  5. t3thomas

    t3thomas Formula Junior

    May 9, 2008
    427
    North Carolina
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    GThomas
    Might be a long shot, but check the red primary lead coming into the back of the large white connector in the fuse panel. This is a typical point of electrical failure when the connection gets corroded and eventually breaks or burns through by too high a resistance.
     
  6. tatcat

    tatcat F1 World Champ
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    #6 tatcat, Aug 16, 2010
    Last edited: Aug 16, 2010
    i swiched to birdman fuses years ago but at this point anything goes. did i say i hate this stuff. the thing that makes me nuts is how it ran perfectly and the next day, nothing. how does these things happen.
     
  7. ramosel

    ramosel Formula 3

    Sep 11, 2004
    1,237
    Meadow Vista, CA
    Full Name:
    R Moseley
    As an electronics engineer, I'd have to say you should count your blessings it died completely. All too often these things fail strangely, intermittently and drive you nuts chasing a problem that is there one day and gone the next only to reappear when you least need it to.

    You have a complete failure... much easier to diagnose than a slow death.

    Rick
     
  8. Paul_308

    Paul_308 Formula 3

    Mar 12, 2004
    2,345
  9. tatcat

    tatcat F1 World Champ
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    Sep 3, 2001
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    kind of like playing russian roulette with an automatic pistol. removes the uncertainty.
     
  10. t3thomas

    t3thomas Formula Junior

    May 9, 2008
    427
    North Carolina
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    GThomas
    I also had switched to Birdman's Fuse Block, but what I'm talking about is in the relay panel. Look at the large (8ga. ?) lead coming from the battery into the white connector and see if it isn't either corroded or burned. If it is, it might be only allowing enough power by to run the little stuff, but not enough for the big draws.
     
  11. tatcat

    tatcat F1 World Champ
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    Sep 3, 2001
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    another good starting point. i'm devoting this entire weekend to solving this thing. or hanging myself on monday
     
  12. tatcat

    tatcat F1 World Champ
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    Sep 3, 2001
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    so went out to make a determined run a fixing this thing today. took out the battery and checked all cables and connections in front. all seemed in good order. put everything back together. just for a test i thought i'd see if the car would, at least, turn over. turn the key, the car fires right up. so what happened? it seems like perhaps something reset itself. how do these things occur? all i did was take out the battery and put it in. i hate this stuff.
     
  13. barcheta

    barcheta F1 Rookie

    Nov 15, 2003
    3,738
    Maryland
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    Jim
    you know you bought a 20+ something year old italian car right? :) They broke like this when they were brand new too.
     
  14. tatcat

    tatcat F1 World Champ
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    Sep 3, 2001
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    rick c
    actually this is the first and only electrical problem i've had with the car in five years and nearly 10k in miles. i suppose that's what's so puzzling.
     
  15. Alfer

    Alfer Formula 3

    Sep 4, 2007
    1,360
    NH/the Netherlands
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    Menno
    The problem most likely was caused by the plus and/or minus connector not clamping well to the battery. It really needs to make goed contact and put some vaseline to protect against erosion. By taking out the battery and refitting you must have done the entire repair by fitting the cables better than was done by the shop that replaced the battery.

    Enjoy your 308!
    regards,
    Menno
     

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