Over the last week i have noticed that whenever i release the gas pedal/accelerator there is a faint rattling noise. It sounds like someone is crumbling up a pop tart wrapper (since the wrapper is metallic). I can only hear it when i am driving slow as the noise cant be heard once I'm going fast. My car is at a little over 10,000 miles, and has had its oil change and tire rotation. One of my coworkers hit my front left bumper with a truck very recently at about 5 mph or less and did scratch it up. I am afraid the noise may be a result of that. Could this noise happen because i have a loose bracket? Any information anyone has is extremely useful. Thank you

 

it could be a number of things but your best bet would be to check the bracket mounts for vibrations. Could be fenders, torque converter (if AT) could be idler pulley

 

Will do. Thank you I just needed to know that the noise was not normal. I thought perhaps it had always done it and I had barely realized it. Thank you