The LLY came with a new variable-vane turbo — with better throttle response than the LB7's unit — and an EGR system. Unfortunately, both seem to have contributed to the LLY's major weakness ...
Making its debut in 2000, the Duramax LB7 V8 turbodiesel could generate 300 ... many owners have experienced trouble with the fuel pump and EGR system. These issues have occurred across the ...
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