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Failed emissions


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I have a 2007 Mack CV713 with the E7 AI460 engine  that has failed emissions for the past several years. This truck is allowed 20% But is running 59.4% on the snap test.. The engine was replaced with a genuine Remanufactured Mack engine in 2016. In 2017 we replaced turbo, thermostat, muffler, EUP’s.  In 2018 we replaced  air to air, ran the overhead.  I have sent the truck to the dealership(I do not have a scanner) and had them check over it And according to the the dealer everything is within spec. My knowledge  with Mack is limited.. Any help would be greatly appreciated. Thank you

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So the ReMack engine is failing emissions? I hope it has a warranty, I know very little about them. There's a thread on here somewhere recent about how to liven up your AI460. Read the thread and wait for someone who actually knows about this engine! 😎

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