Engine Sounding Like a Chain Saw

dodge
caliber

#1

I have a 2007 Dodge Caliber, and recently, my engine is beginning to sound like a chainsaw. It gets louder as I accellerate and softer when the car is either idled or my foot is off the gas. Do you have any idea what is wrong with my car?


#2

Is there any chance it happens in park and you could have someone rev the engine and help locate the noise?


#3

This is just a guess simply because none of us can hear it, but one of my first suspects would be a loose heat shield on the exhaust system.