skedadl

Cross post from another forum, but you'll get the drift: My 2017 Silverado 2500 duramax does the same thing. Very very bad diesel fuel smell inside the cabin while in regen. And no, I am not talking about the burning plastic smell outside the truck while in this mode. I am very familiar with that and it does not bother me. My 2013 Duramax did not have this problem, in that regard it was a much better truck. I am so disappointed with this one. I have been to two separate dealerships for this issue, both of them tell me nothing is wrong and it is normal. Also, it does not matter what the climate control settings are, it can be either fresh air, recirculating air, or completely turned off, we still get the raw diesel fuel smell in the cab during regen. It is so bad it makes our eyes water. We have to roll down all of the windows just to get fresh air. Help GM! Something has to be done! UPDATE March 2018: I managed to get this resolved to my satisfaction through my local dealer. While they initially failed at diagnosing the problem, they did a great job getting it resolved, once they confirmed the issue! I insisted that the local dealer's service department manually place the engine in regen mode, and then had the service manager take a ride in it. FINALLY he acknowledged the issue. They tell me that they had to make several phone calls to Chevrolet to get it resolved, and it involved some pretty major parts and labor to fix it. There is was a manufacturing defect in one or two of the pipes that mate together with a gasket. Sorry for the layman's terms, I'm not a diesel mechanic nor do I have any interest in anything with this truck other than using it for the purposes it was built. That being said, here is a partial list of the new major parts installed: Converter (part number 12680277 Separator (part number 12682569 Clamp (part number 12683878 Hose (part number 12676884 There are many other parts on the list, consisting mostly of gaskets and seals. The final description of the repair, which finally solved the problem, is as follows: "Performed exhaust adjust procedure per SI, installed intake manifold, reinstalled turbo and all components, installed EGR cooler, installed EGR pipe, all w/new gaskets, installed alternator, A/C compressor, intake duct, charged A/C system to spec, bleed cooling system, performed catalyst system reset, performed service regen. Test drove w/service manager, verified repair, no exhaust smell in cab during regen, vehicle operating to designed intent." I realize that description probably doesn't cover all of what actually was done, but at least it might lead others in the right direction when dealing with this issue. Good luck to all!