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  1. Duramax First Generation: 2001-2004 (LB7)
    Loss of power going uphill
  2. Duramax First Generation: 2001-2004 (LB7)
    I have a overboost code, the dealer says it needs a new turbo, really? I talked to a local diesel mech and he says there is a prosses to flush the engine and fuel system that will help unstick the turbo blades. I guess they get gummed up if you don"t drive it with your foot in all the time...
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