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    LML EGR Parts needed

    OK, I got a lot done since my initial post. P24C4 code. I hope this helps someone. Locally, I did get a complete USED EGR assembly, both valves, coolers, & pipe. Guy said it all came off a working 2011 LML that he did the delete on. They looked pretty clean. I bench tested and inspected them...
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    LML EGR Parts needed

    Hello all. NewBe here. 2013 GMC 6.6 Duramax Diesel 2500hd Sierra LML 44K miles 2nd owner. I have been chasing codes P24c4 & P049d for a couple days now. My reputable dealer wants $2,800 to do the EGR Cooler by-pass valve replacement. I know it is a hard one to replace. Right now I am...