poor performance

  1. R

    2015 Tahoe LT 4WD Sluggish Acceleration

    I had a 1999 Tahoe 2WD and I don’t remember ever worrying about merging into traffic with it. I pressed the gas, and it would get up and go. It would put you back in the seat. I have a 2015 Tahoe LT 4WD with the 5.3 now. It seems to have no acceleration at all. If I floor it, it will not put...

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