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Jeep Wrangler YJ
YJ General Discussion
Engine cutting out after warm up
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<blockquote data-quote="TimberTim" data-source="post: 434753" data-attributes="member: 20208"><p>I had the same symptoms. I purchased an "Inline spark checker light" from Harbor Freight for $4 to help troubleshoot the problem . Connect the light between the coil and distributor. When the engine starts missing check the light to see if it is blinking in time with the miss. I used longer spark plug wires so I could lay the light on the hood so I could watch it as I drove it down the street . This led me to a bad coil (it rattled when I shook it). If nothing else you can prove it's not an electrical problem for $4. Good luck</p></blockquote><p></p>
[QUOTE="TimberTim, post: 434753, member: 20208"] I had the same symptoms. I purchased an "Inline spark checker light" from Harbor Freight for $4 to help troubleshoot the problem . Connect the light between the coil and distributor. When the engine starts missing check the light to see if it is blinking in time with the miss. I used longer spark plug wires so I could lay the light on the hood so I could watch it as I drove it down the street . This led me to a bad coil (it rattled when I shook it). If nothing else you can prove it's not an electrical problem for $4. Good luck [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
Engine cutting out after warm up
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