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Thread: Battery problem...

  1. #1
    Winning! friskeljr's Avatar
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    Default Battery problem...

    Ok so a few weeks ago my jeep started acting up, i would go to start it and it wouldnt crank... the gauges would bounce all the way up then go all the way off... then i would take the key out and it would do it again, it would normally take about two or three time to start it, then it would be fine. the battery finally died and i had to get a new one. ok the jeep is now starting to do the same thing again with that new battery. so what the hell is going on?
    Guns dont kill people..... gaping holes in vital organs kill people...

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    darwinism at its best irish1371's Avatar
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    check the grounds on your jeep. even if the battery side of the neg cable is in good shape, that does not mean the starter end or the common ground post on the engine block and the jumper from the fire wall could not be corroded.

    I would just follow you cables from the neg side of the battery and check the far ends along with flexing those cables a bit while you follow them to see if they are corroded anwhere along the way
    "Some people wonder their whole lives if they will ever make a difference. Marines don't have that problem." Pres. Ronald Reagan
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  3. #3
    Runs with Scissors Cjack350's Avatar
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    Alternator?
    1980 CJ7 350sbc, T-18, Dana 20

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    Experienced General Ass
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    I t could be a LOOSDE NUT behind the wheel

  5. #5
    Time n Money Ghost00TJ's Avatar
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    Default

    I had a problem close to that and the 2 ground cables going to the fire wall were bad, I replaced those and had no issues since.


    Quote Originally Posted by irish1371 View Post
    check the grounds on your jeep. even if the battery side of the neg cable is in good shape, that does not mean the starter end or the common ground post on the engine block and the jumper from the fire wall could not be corroded.

    I would just follow you cables from the neg side of the battery and check the far ends along with flexing those cables a bit while you follow them to see if they are corroded anwhere along the way
    F'it, aint my Jeep!
    Beer does a Jeep Good

  6. #6
    Member warthog_cj7's Avatar
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    Definately sounds like Ground or shorted wires.

    I just spent 2wks cleaning up under the hood (5yrs ago swapped 4.0L, spliced and no clean-up). Used 1/0 welding cable and ran grounds; Battery to block, Battery to frame, Battery to firewall plus through firewall to other end. Every single grounding connection disconnected, replace with brandy new bolt and sanded contacts on the wire and what they were contacting.

    After running all new grounds, I still had running issues. Split all looms and spread the birds nest. While engine running start shaking the wires and the engine would cut out. Ended up replacing 4 wires that were shorting.
    Dan M.

    '85 CJ-7, 4.0L,T18,4.10s,35s,Fully locked,winch,cage

  7. #7
    plays well in mud boodlebutt's Avatar
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    Quote Originally Posted by hobbyshopass View Post
    I t could be a LOOSE NUT behind the wheel

    ROFLMAO
    i love my country , but scared to death of its government!

    Back in the Jeep life! no more small cars here!

  8. #8
    Newbie scobec04's Avatar
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    I had the same thing happen to my 06 TJ just the other day, took the battery into be tested and it was good, come to find out it was just very minor corrosion on the battery terminals and the possitive and negative connectors. cleaned them off with some sant paper and no problems since. cleand the terminals and connectors even if you think they are clean, clean them anyway.

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