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  1. T

    LLY: injector problem

    Thanks i will try that next and see what i come up with .
  2. T

    LLY: injector problem

    I am new and need some help, have a 04.5 lly that has a injector noise that comes and goes and only happens after a shift around 1800 rpm and goes away at about 2100. Fuel filter is fresh and running treated fuel . injection harness has the gm fix and all balence rates are in spec but all run...
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