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Jeep Wrangler JK
JK General Discussion
2015 JKU P0420
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<blockquote data-quote="Dirty Dog" data-source="post: 463962" data-attributes="member: 24042"><p>Replacing the cat is pretty much always a Band-Aid. Because cats don't really fail. They're killed by something. So unless you figure out what killed it, you're likely to end up with another dead cat. Most cats fail for one of three reasons:</p><p>1 - Overheating from misfires, poor AFR, excessive load, etc.</p><p>2 - Fouling from burning oil, excessive carbon buildup, or internal coolant leaks.</p><p>3 - Physical destruction, from banging it on something. Like a big rock.</p></blockquote><p></p>
[QUOTE="Dirty Dog, post: 463962, member: 24042"] Replacing the cat is pretty much always a Band-Aid. Because cats don't really fail. They're killed by something. So unless you figure out what killed it, you're likely to end up with another dead cat. Most cats fail for one of three reasons: 1 - Overheating from misfires, poor AFR, excessive load, etc. 2 - Fouling from burning oil, excessive carbon buildup, or internal coolant leaks. 3 - Physical destruction, from banging it on something. Like a big rock. [/QUOTE]
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Jeep Wrangler JK
JK General Discussion
2015 JKU P0420
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