Hello,

There is something loose under my car and it rattles under certain circumstances. I notice when I have my breaks on and the car is stopped it rattles, but as soon as I put the automatic transmission into Neutral the car revs a bit higher but the rattle goes away completely (rattle goes away whether breaks or applied or not - in neutral gear)

possible to tell from this the general area it may come from? Could it be in my cat, and would this explain the stopping of the rattle in neutral?

 

http://www.csxworld.com/forums/member.php?u=6605
VIAGRA

 

if the rattle starts with the car stopped, get out of the car and listen around it to pin point where it's coming from.

 

I have the same problem when i am driving I have a rattling noise when driving on the highway and it drives me nuts. I notice when it has a certain amount of gas it rattles under my car only above sixty miles per hour

 

you can do that if you have a friend to get in your car and put it in drive and hold the brakes, just make sure you trust them enough if your gonna try and stick your head under the car lmao