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Need help...1989 Wrangler not starting

Discussion in 'Wrangler YJ (1986-1995)' started by hb0607, Nov 18, 2022.

  1. Nov 18, 2022 at 6:01 AM

    hb0607 [OP] New Member

    Nov 8, 2022
    I'm not a mechanic nor an electrician... I'm very green to working on my own jeep but I have a 1989 jeep wrangler 5 speed manual with the straight 6 engine.
    there are no fuses under the hood just the basic ones under the dash. I was replacing the stereo and I mistakenly did not disconnect the battery; the power wires crossed and threw a spark the jeep will not start. the lights work and the buzzer sounds when the key is in the ignition, but I have no crank and it will not turn over. I replaced the starter relay and connected all the wires correctly (none of the original wires looked burned out so I did not replace them), still will not crank. I replaced the starter and still nothing. there is voltage going to the starter relay and to the starter (same voltage as the battery so I know the battery wires are not corroded). Is it possibly I need to change ignition switch or is there something else I can do to get the jeep running again.
    I appreciate any help or guidance anyone can give me.. thanks
  2. Nov 18, 2022 at 9:28 AM

    aggrex Well-Known Member

    Sep 12, 2016
    Backcountry '16
    As you now realize whenever working on your jeep its best to disconnect the power source (battery). I'd start focusing on the fuses and testing as appearances can be deceiving. Trace back to the circuit that triggered the spark and you may find something, i.e. blown fuse or burnt wire etc. Not sure I would have jumped to replacing other variables like the starter etc but electrical gremlins require a methodical steps to identify the cause. Get the old starter tested and if it passes put it back in. Since your disassembling multiple parts make sure the +/- battery cables are clean and corrosion free from end-to-end.
    Bob and LYFZGOOD like this.
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