my 2004 vibe makes a loud vibrating sound when you put in reverse any idea

What is your question?

it only does it when you crank the car and put in reverse.i dont realy hear it once you put in drive and go

What makes this problem better or worse?

just put in reverse once in drive i dont hear it.seems louder when first cranked

How long has your 2004 Pontiac Vibe had this problem?

about a month