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Q: Hello I have a 2007 suburban with a cylinder 6 misfire changed the plug coilpack on 2007 Chevrolet Suburban 1500

Wire and injector still misfire compression at 134 compared to the test two mechanics say new engine still runs but shakes
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Injector balance test and smoke test for vacuum leak been performed??... Yeah, I read about all the parts that have been installed, but have these test been done?
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