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Old 06-05-2018, 02:52 PM
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unattached wire from ignition coil

I was under the hood last night and saw a small gauge wire coming off the ignition coil that wasn't connected. I think it was yellow with some kind of female plug end. There were a couple more wires that looked like they were plugged back in to the ignition coil.

Any ideas? Sorry no pic at work. Can post in a couple of hours.

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Old 06-05-2018, 03:02 PM   #2
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Is your jeep running?
If so, someone may have ran some type of accessory to your coil (do not do that).
From the description, I'm betting it's a choke wire....

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Old 06-05-2018, 03:13 PM   #3
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Are the two wires that should be connected to the coil there? I believe they are green and yellow. If the Jeep is starting, the yellow wire isn’t the ignition wire and shouldn’t be there.


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Old 06-05-2018, 04:20 PM   #4
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Are the two wires that should be connected to the coil there? I believe they are green and yellow. If the Jeep is starting, the yellow wire isn’t the ignition wire and shouldn’t be there.


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Old 06-06-2018, 04:59 PM
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Yes, it runs well above 1000 rpm. Below that I have the common rough idle issues.

No accessory plugged in here. It's is a 1 owner Jeep and we've had it all but 6 months. It was a dealer program car we bought in '88 with 6K miles.
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Old 06-06-2018, 05:00 PM
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Yeah two wires are plugged in to the coil. Another is just hanging out in the breeze. Will try to post picture tonight.
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Old 06-06-2018, 05:42 PM   #7
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Any chance someone had a tachometer hooked up to the coil? I've seen gauges mounted under the hood for easier tuning : tach, vacuum, dwell etc.
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Old 06-10-2018, 09:57 PM
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@283 YJ - no, I don't think so. It's one owner and bone stock. Yellow and green pair are going into opposite sides of the coil and another yellow one comes out hanging in breeze where yellow goes in.

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