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Message: <blockquote data-quote="dieselloverfr06" data-source="post: 28987" data-attributes="member: 10694"><p>Yes Not all Chevy dealers know what they are doing when servicing this emissions system. Plus I am Not At All Impressed with the computers in the car. My dealer is a huge Metropolitan dealer and they work of lots of diesel GM products so they do know what they are doing. Also if you miles driven were low enough it should have been covered under warranty. I had my problem with this system early and they explained to me how to prevent the sensor and the PCV and EGR vales from getting clogged. So I am at 45,000 miles driven since then and everything is working fine plus really great mileage.</p></blockquote><p></p>