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International Automotive Technicians Network
Re: LB7 Duramax dumping fuel
Posted to Technical Discussion Forum on 3/29/2023

Those , when new(er), had a known pattern failure of dumping fuel past the injectors into the crankcase. I’m didn’t it look but figure Google will light up on a search for that. A friend bought one that way. There was an extended warranty for it. I’m shooting ... Login to read more.