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Any LB7 Duramax guys here?
Hey all. I have a 2004 Silverado 2500HD 4x4 with the LB7(?) VIN#1 Duramax. Owned it for about 6 months now and now matter what we do to it the truck throws trouble codes for the mass air flow sensor and the egr system. It's been to Chevy 2 or 3 times now and both the entire EGR and MAF systems...