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lb7 repair or swap
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  1. Duramax First Generation: 2001-2004 (LB7)
    I have a 2002 LB7, 280,000 miles that has coolant leaking into the crankcase even when the engine is off. I've replaced the oil cooler but still have the issue. Should I- A: Locate the issue probably diving into full LB7 upgrades as it needs injectors anyway- head gaskets with studs, injectors...
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