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    High idle at start-ups

    I'm not sure if it's a vacuum leak causing this or what. When I start up my '07 QC Hemi 4x4 on a cold engine, the truck idles really high (1100-1300rpms). 1st, where can I find a vacuum line schematic and 2nd, does anyone have any suggestions other than a vacuum leaks what could be causing this...
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