It sounds like moarse code... I didnt hear it in my car... I was looking for a rip in a vacuum line and when i moved the inlet tube it made a weird noise i figured this noise could have to do with my check engine light... Anyone have any idea... Its weird... Easily heard... Hard to determine quite where... I have been moving the inlet tube and sound is still there.... I think it has to do with all my emmissions crap too!!!! ERRRRR!!!! HELP ME OUT!!!! Weird noise hard to describe... almost like a piece of paper stuck in a sweeper but not nearly as loud!!!