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Jeep Wrangler JK
JK General Discussion
3.6 Pentastar Misfire on Cylinders 1, 3, & 5
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<blockquote data-quote="Barry" data-source="post: 435084" data-attributes="member: 20375"><p>I had the same thing happen to a 2008 Wrangler I once had. I replaced every sensor in that durn thing and no luck. Especially when speeding back up from making a turn. I finally gave up and took it to a shop where they had one of those 3 thousand dollar diagnostic machines and promptly told that the spark plug wires were leaking. The wires look like new to me but I went to Napa and bought a set their high budget wires. After that it ran perfect. The wires for 1-3-5-7 run behind the engine and apparently it gets too hot back there.</p><p>I ran the new ones over the top. I now have an inventory of 2008 3.8 engine sensors including the coil pack. All but the O2 sensors.</p></blockquote><p></p>
[QUOTE="Barry, post: 435084, member: 20375"] I had the same thing happen to a 2008 Wrangler I once had. I replaced every sensor in that durn thing and no luck. Especially when speeding back up from making a turn. I finally gave up and took it to a shop where they had one of those 3 thousand dollar diagnostic machines and promptly told that the spark plug wires were leaking. The wires look like new to me but I went to Napa and bought a set their high budget wires. After that it ran perfect. The wires for 1-3-5-7 run behind the engine and apparently it gets too hot back there. I ran the new ones over the top. I now have an inventory of 2008 3.8 engine sensors including the coil pack. All but the O2 sensors. [/QUOTE]
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Jeep Wrangler JK
JK General Discussion
3.6 Pentastar Misfire on Cylinders 1, 3, & 5
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