Thankfully, when GM debuted the LLY Duramax in 2004, the engineering team had corrected the fuel injector issue altogether.
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Duramax Diesel Generations By Year: A Complete HistoryGM debuted a revised engine, the LLY, mid-way through 2004 for ... system to the Duramax and added a ninth fuel injector specifically for the DPF regeneration process. The result was an emissions ...
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