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Jeep Wrangler JK
JK General Discussion
Need some help troubleshooting my 2008 Rubicon
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<blockquote data-quote="Creston" data-source="post: 444700" data-attributes="member: 22510"><p>Would be cheaper to have it smoked and diagnosed than throw parts. I also have an 08 rubicon plus run a shop. And yes....needing repair every few weeks is just natural for Mopar. Especially 04ish till 2018ish or so.</p><p></p><p>The 08 SHOULD say gas cap on the dash where the odo is. Generally they do IF its a gas cap. Mine has. Also generally the code is for a small or very small evap leak if it's just a cap. Usually a large leak code is pretty obvious.</p><p></p><p>A cat has nothing to do with evap in any situation I've ever seen. Ive seen those come apart and wreck the 3.8 JK though. If you used aftermarket O² sensors that could be a problem. Best thing would be a compression and leakdown test.</p><p></p><p>151k I wouldn't be surprised by bad plug wires or plugs. If you plan to keep it id be ok with throwing new wires on it. Plugs too.</p><p></p><p>The lightning bolt is probably a throttle position issue. Be easy to check via a scantool. Never seen it have anything to do with traction control.</p><p></p><p>Is it just traction control or both stability and traction lights.</p><p></p><p>Luckily the 3.8 jeep engine is likely the most simple engine made post 2005 or so. No cylinder deactivation. Not even variable valve timing. or much of anything computerized engine wise. Compared to most anything we see regularly nowadays it's a dinosaur so diagnosing it should be easy</p></blockquote><p></p>
[QUOTE="Creston, post: 444700, member: 22510"] Would be cheaper to have it smoked and diagnosed than throw parts. I also have an 08 rubicon plus run a shop. And yes....needing repair every few weeks is just natural for Mopar. Especially 04ish till 2018ish or so. The 08 SHOULD say gas cap on the dash where the odo is. Generally they do IF its a gas cap. Mine has. Also generally the code is for a small or very small evap leak if it's just a cap. Usually a large leak code is pretty obvious. A cat has nothing to do with evap in any situation I've ever seen. Ive seen those come apart and wreck the 3.8 JK though. If you used aftermarket O² sensors that could be a problem. Best thing would be a compression and leakdown test. 151k I wouldn't be surprised by bad plug wires or plugs. If you plan to keep it id be ok with throwing new wires on it. Plugs too. The lightning bolt is probably a throttle position issue. Be easy to check via a scantool. Never seen it have anything to do with traction control. Is it just traction control or both stability and traction lights. Luckily the 3.8 jeep engine is likely the most simple engine made post 2005 or so. No cylinder deactivation. Not even variable valve timing. or much of anything computerized engine wise. Compared to most anything we see regularly nowadays it's a dinosaur so diagnosing it should be easy [/QUOTE]
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Jeep Wrangler JK
JK General Discussion
Need some help troubleshooting my 2008 Rubicon
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