ok. their is this real wierd sound that happens in my car ocasinaly. its like a deep sound that is comeing from the back part. it mostly happens when i have someone inthe back or i have weigh in the back. i was thinking maybe it was the mufler but i haveno idea. if u have any idea what it is, please let me know!
thanks

 

can you be a little more descriptive?

how fast are you going, are you turning, does it happen when the car isn't moving?


is it the tires scraping?

 

its mostly when im taking off and sometimes turning. it never does it when im stoped.