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Cant find a vacuum leak. Do you have a picture of all the vacuum lines 05 sxt auto? Maybe I missed one. Where does that small plastic tube go into the fire wall off the brake booster? That tube has tape on a spot, maybe it was broken and they put tape to cover it.
Come by a Swisher Sweets cigar, "T" into & blow some smoke into the vacuum system close to where you think the vacuum leak may be & look, or smell for smoke at the leak spot.