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Hesitation between 2-3k rpm

Discussion in 'Chevy Suburban Forum (GMC Yukon XL)' started by Txags, May 25, 2012.

  1. Txags

    Txags New Member

    Hey guys! New member here!
    Our 2009 Suburban has developed a weird hesitation/shaking around 2-3k rpm. It is most noticeable when towing anything or accelerating heavily. It is also noticeable during shifting, but I think that's a function of the RPM more than anything.
    We just had to repair the radiator due to a rock puncture. I made sure to check the tranny fluid and top off as a bit was lost out of the cooler during the removal process.
    Ive checked vacuum lines and everything is good.

    Any ideas? Tanks!
    Jason

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