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Jeep Wrangler YJ
YJ General Discussion
Rough idle, pulled #4 spark plug no change?
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<blockquote data-quote="Gilaguy23" data-source="post: 435674" data-attributes="member: 19498"><p>A leaky egr valve will make it idle like sheeeeettt. The seat gets burnt like a bad valve. You might try replacing it and see what that does. next I see Champion plugs but you said Bosch. IMO if you have Bosck plugs in there,platinums or?? , throw them in the shit can and go back to plain old champions. #3 is obviously way to rich, are you sure you did not crack the porcelin putting the new ones in?</p></blockquote><p></p>
[QUOTE="Gilaguy23, post: 435674, member: 19498"] A leaky egr valve will make it idle like sheeeeettt. The seat gets burnt like a bad valve. You might try replacing it and see what that does. next I see Champion plugs but you said Bosch. IMO if you have Bosck plugs in there,platinums or?? , throw them in the shit can and go back to plain old champions. #3 is obviously way to rich, are you sure you did not crack the porcelin putting the new ones in? [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
Rough idle, pulled #4 spark plug no change?
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