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Jeep Wrangler YJ
YJ General Discussion
Need some help with 91 YJ engine codes 75 and 73
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<blockquote data-quote="SirDoopYJ" data-source="post: 428267" data-attributes="member: 19139"><p>From what I can find by searching "jeep YJ code 73 75". It looks like one person figured it out to be that his Alternator was the culprit. He changed it out and the codes no longer appeared.</p><p> That is this page here: <a href="https://Wrangler Forum/threads/yj-codes-73-and-75-wtf.251402/" target="_blank">https://Wrangler Forum/threads/yj-codes-73-and-75-wtf.251402/</a></p><p></p><p>Here is one more page I found, but it seems it went unsolved: <a href="https://Jeep Forum/forum/f12/need-help-yj-fault-codes-also-have-front-end-vibration-1135617/" target="_blank">https://Jeep Forum/forum/f12/need-help-yj-fault-codes-also-have-front-end-vibration-1135617/</a></p><p></p><p>In the second one it is explained that the owner witnessed vibrations going past 30mph. There was another guy that mentioned that most ODBI codes are the same between vehicles. If that is true code 73 and 75 could be detecting misfires.</p><p></p><p>I hope this helps. I am sure someone can provide more information.</p></blockquote><p></p>
[QUOTE="SirDoopYJ, post: 428267, member: 19139"] From what I can find by searching "jeep YJ code 73 75". It looks like one person figured it out to be that his Alternator was the culprit. He changed it out and the codes no longer appeared. That is this page here: [URL]https://Wrangler Forum/threads/yj-codes-73-and-75-wtf.251402/[/URL] Here is one more page I found, but it seems it went unsolved: [URL]https://Jeep Forum/forum/f12/need-help-yj-fault-codes-also-have-front-end-vibration-1135617/[/URL] In the second one it is explained that the owner witnessed vibrations going past 30mph. There was another guy that mentioned that most ODBI codes are the same between vehicles. If that is true code 73 and 75 could be detecting misfires. I hope this helps. I am sure someone can provide more information. [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
Need some help with 91 YJ engine codes 75 and 73
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