I have notice this lately and i dont know if it has to do with the vibration on my car as i have discussed in other forums. we came to the conclusion it was my exhaust more precise, my y-pipe. Well anyways when i turn my car off i have noticed that i hear an air release from the back and I hear it every 10 seconds or so whats up with that. i dont know how long it goes on for but i didnt want to wait and see. Any info i would appreciate it. it is more comical that worrysum

 

does this sound weird or what please help!!!

 

Yeah I dont really think thats to normal, might want to have an exaust shop check it out, if you know thats were its comming from.