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Cobra Forums
2013-14 Shelby GT500
Won't pass readiness emissions test
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<blockquote data-quote="forcefedjunkie" data-source="post: 15992649" data-attributes="member: 11105"><p>Just to close the book on this, the dealer finally "found" the problem, which was similar to Lexustech48's issue above. The problem was the balancer bolt was loose. I did have a overdrive balancer pulley on the car, however it was removed 2 years ago at 2k miles. Car now has 4500 miles. This is a torque to yield bolt that was installed properly 2 years ago, and there was never a problem with misfires until the car had been at the dealership for a few weeks. What I think really happened was someone there removed the balancer while troubleshooting and omitted to reinstall it properly. This caused the "new" misfire issue which coincided with the PCM swap which ended up being unrelated but mislead them for months since the timing made it seem like the cause. Anyway, car is back and running fine, the multi-thousand dollar bill was picked up by the warranty.</p></blockquote><p></p>
[QUOTE="forcefedjunkie, post: 15992649, member: 11105"] Just to close the book on this, the dealer finally "found" the problem, which was similar to Lexustech48's issue above. The problem was the balancer bolt was loose. I did have a overdrive balancer pulley on the car, however it was removed 2 years ago at 2k miles. Car now has 4500 miles. This is a torque to yield bolt that was installed properly 2 years ago, and there was never a problem with misfires until the car had been at the dealership for a few weeks. What I think really happened was someone there removed the balancer while troubleshooting and omitted to reinstall it properly. This caused the "new" misfire issue which coincided with the PCM swap which ended up being unrelated but mislead them for months since the timing made it seem like the cause. Anyway, car is back and running fine, the multi-thousand dollar bill was picked up by the warranty. [/QUOTE]
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2013-14 Shelby GT500
Won't pass readiness emissions test
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