Here is a video... http://www.youtube.com/watch?v=M6cb5y_54Jw

You can hear a rattle when the engine is rev'ed, but that creaking is driving me nuts. You can also hear the rattle when you first hit the gas, but it goes away. This happened all of a sudden, was fine prior. New radiator put in 6 days prior. Vehicle is a 96 Ford Ranger, v6, 3.0L, 209K. If you have any ideas it will be appreciated. Thanks!