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2000 Tahoe 5.7 misfires on grade

Discussion in 'Chevy Tahoe Forum (GMC Yukon, Cadillac Escalade)' started by tahoe56, Sep 17, 2012.

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  1. tahoe56

    tahoe56 New Member

    My 2000 Tahoe 5.7 misfires when driving hwy speed when driving up long hills or grades, it will recover and run fine when I let off gas for 5-10 seconds. I have replaced plugs, wires dist. cap, new air filter, cleaned throttle body and mass air. It used to do this only when pulling a boat up a grade, but now does it without pulling anything
     

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