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Jeep Wrangler YJ
YJ General Discussion
Jeep YJ will not start - HELP! I've tried everything!
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<blockquote data-quote="jeepjoe43" data-source="post: 428989" data-attributes="member: 19255"><p>Just thought I would share what I found on mine.</p><p>I replaced every sensor I could find, the ignition switch, fuel press regulator, fuel pump and tank (mine was BROKEN) and finally the coil. </p><p>The ignition switch was pain in the arse, the tank & pump were an absolute war, 5th skirmish was the charm.</p><p>It also had a broken hose to the filter, but it ran, it just sprayed gas everywhere.</p><p></p><p>Ignition switches don't really wear-out, they fail when a contact overheats and kills the little coil springs under them.</p><p>They overheat because of contact wear or something shorting out down the line...</p><p>It could be wear at the key mechanism, but I doubt it, if it's cranking, it's throwing far enough.</p><p>Be sure to tape the rod to the column when you pull the switch, don't let it fall out!</p><p></p><p>As for fuel pressure, you should have 35-38psi, not holding pressure is the check valve in the pump.</p><p>Had the same slow start thing, too.</p><p>Sometimes the ground for the pump rusts off the sending unit.</p></blockquote><p></p>
[QUOTE="jeepjoe43, post: 428989, member: 19255"] Just thought I would share what I found on mine. I replaced every sensor I could find, the ignition switch, fuel press regulator, fuel pump and tank (mine was BROKEN) and finally the coil. The ignition switch was pain in the arse, the tank & pump were an absolute war, 5th skirmish was the charm. It also had a broken hose to the filter, but it ran, it just sprayed gas everywhere. Ignition switches don't really wear-out, they fail when a contact overheats and kills the little coil springs under them. They overheat because of contact wear or something shorting out down the line... It could be wear at the key mechanism, but I doubt it, if it's cranking, it's throwing far enough. Be sure to tape the rod to the column when you pull the switch, don't let it fall out! As for fuel pressure, you should have 35-38psi, not holding pressure is the check valve in the pump. Had the same slow start thing, too. Sometimes the ground for the pump rusts off the sending unit. [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
Jeep YJ will not start - HELP! I've tried everything!
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