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98 tj alternator problems

Discussion in 'Jeeps' started by dheavychevy38, Nov 16, 2009.

  1. dheavychevy38

    dheavychevy38 Senior Member
    Messages: 283

    Hello I recently installed a new alt into my ladys 98 tj with a 4cyl. The problem is it is only makeing 12 volts :confused: Any jeep gurus have any ideas of where I should look . The battery and cables are all new and are tight. The reason I put a new one in is because the old one was squealing and would drop around 9 volts.
     
  2. theplowmeister

    theplowmeister 2000 Club Member
    from MA
    Messages: 2,552

    Squealing is from belt slipping. your belt tensioner is bad or the belt is slipping on the crank pully. my bet is a bad tensioner. Its spring loaded and I bet the spring is week.
     
  3. dheavychevy38

    dheavychevy38 Senior Member
    Messages: 283

    It was the alternator when I pulled one good spin and you could hear the bearing. Plus on this one the belt is adjusted buy a mechanical tensioner not by a spring. I just pulled the new alt out and sounds like one of the brushes or something in laying in there cause you can hear something clanking around when I spin it. Also have a new issue also broke on of the tabs off the funky connector on the bottom of the alt. Any idea on how that is supposed to be wired up. There are two 4 gauge ground wires and tow smaller wires one is solid green and the other is green with a red tracer.
     
  4. theplowmeister

    theplowmeister 2000 Club Member
    from MA
    Messages: 2,552

    Sorry I dont have a clue.