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    LB7: What to do? New Sac injectors, or new truck?

    Hi everyone! Glad to be a member here, lots of good discussions. Here is my dilemma. I have owned an '02 LB7 since 2006. Good truck, no problems, except new injectors around summer, 2008.Courtesy GM., at 108k. Now over 180k, and started getting smoke at idle, so I did the 4 cans of Seafam in 10...