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.

 

Check it, then buy a piece of rubber tubing/hose that fits snuggly and splice it if it is cracked.

 

You can spray carb cleaner on connections and listen if idle jumps up, easy way to find leaks old school.

 

 

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.

 

Thanks for the picture and ideas, Ill see what i can find after Thanksgiving. Thank you.