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  1. 99 5.7 Tahoe hesitation and terrible fuel mileage

    Chevy C/K Truck Forum
    I have a 1999 Chevy Tahoe that hesitates bad sometimes when you accelerate hard as soon as it gets warm. When it’s cold it runs great. I have changed plugs, wires, distributor cap and rotor button about 6 months ago as well as the fuel filter this week. But it is now getting terrible gas...
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