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  1. ‘99 Tahoe running rough/Sluggish/Horrible mpg

    Chevy C/K Truck Forum
    Hey y’all, I have a ‘99 2 door Tahoe sport. Bought it last year and had always wanted one of these. So I replaced plugs (ngk), wires, ignition coil, cap, rotor, fuel filter, CS sensor, Intake manifold gasket, spider, starter, water pump, alt lol. A **** ton. Anyway, so I do audio comps and...
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