First time Corolla owner .. So I bought a 2014 Corolla with 26-27000 miles on have have the car for about 25 days love the car but I've noticed that the car at a red like idles a little not very bad but it's noticeable and the rpms kinda bounce from about 5-7 now when I turn the Ac it's very noticeable and the rpms bounce from about 500 to almost 1000 at a red.. Already took it back to the dealer and they said its "normal" on these kind of cars does anyone else have this problem or am I just paranoid