I have a 97 Ram 1500 and when i just barely hit the gas like just barely under 1000 RPM i hear a queit little rattle that almost sounds like its coming from the cat or somewhere in the exhaust. Is this just my cat starting to fall apart or something else since it is only at that RPM? Once in a while it wont do it at all. I notice it mostly when the truck has been sitting for a while. Not running..

 

sounds like a heat shield

 

how would i go about making it stop?

 

depends on wether it is a bolt on or weld on. bolt on -tighten it , weld on--anyway I personally would just take them off.