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Jeep Wrangler YJ
YJ General Discussion
Engine cutting out after warm up
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<blockquote data-quote="machoheadgames" data-source="post: 432381" data-attributes="member: 18789"><p>PCM sounds like the next logical thing to change/test/replace etc. to me. Hate throwing parts at things but there really isn't much else it could be. It's pretty obvious the computer knows when to go into closed loop, so I'm sure the temp sensor is probably fine although I didn't see you mention it. But I would think it's working fine based on the PCM differentiating between closed and open loop. Only thing left really is the PCM. </p><p></p><p>As for where to get one, you might try eBay. WranglerFix came up with a PCM solution for the 05-06 TJs which have a very faulty design and pretty much all of them are affected by it by now which I imagine is why 05-06 are for sale more often than the others. Anyways, on YJ stuff WF is just buying and reselling for the most part, as far as I know. They might be doing some capacitor fixes but I think for the most part they are just distributing, not doing ground up rebuild type stuff like they do for the TJs. Still maybe worth a call to them, but last time I checked they wanted a lot more $ than the standard 2-300 PCMs cost at the time back then. This was probably 2 years ago when I looked. But if they are the only guy in town, then maybe worth what they're asking. You might try going and snagging some out of XJs instead, although with most XJs being 4.0, it might be tough to find the one you need.</p></blockquote><p></p>
[QUOTE="machoheadgames, post: 432381, member: 18789"] PCM sounds like the next logical thing to change/test/replace etc. to me. Hate throwing parts at things but there really isn't much else it could be. It's pretty obvious the computer knows when to go into closed loop, so I'm sure the temp sensor is probably fine although I didn't see you mention it. But I would think it's working fine based on the PCM differentiating between closed and open loop. Only thing left really is the PCM. As for where to get one, you might try eBay. WranglerFix came up with a PCM solution for the 05-06 TJs which have a very faulty design and pretty much all of them are affected by it by now which I imagine is why 05-06 are for sale more often than the others. Anyways, on YJ stuff WF is just buying and reselling for the most part, as far as I know. They might be doing some capacitor fixes but I think for the most part they are just distributing, not doing ground up rebuild type stuff like they do for the TJs. Still maybe worth a call to them, but last time I checked they wanted a lot more $ than the standard 2-300 PCMs cost at the time back then. This was probably 2 years ago when I looked. But if they are the only guy in town, then maybe worth what they're asking. You might try going and snagging some out of XJs instead, although with most XJs being 4.0, it might be tough to find the one you need. [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
Engine cutting out after warm up
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