2000 Explorer Sport - Help Identifying Noise

[avidmar1978]

I've got a metallic rattle coming from under the car somewhere - not under the hood. I can't locate it. It almost sounds like a jackhammer. It doesn't seem to impact the drive or the engine at all, it's just annoying right now.

Click Here for Video

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Edit - smaller video uploaded (2.5 MB)

 

[deweyville65]

Metallic rattle? Try the heat shields around the exhaust system.

 

[avidmar1978]

Noise identified. The exhaust hanging bracket, not the hanger attached to the pipes, the square metal piece with the bushing inside, is missing a screw and is shaking when the vehicle is running. I tried to grab one of these screws from the junk yard, but couldn't loosen one up.

I did also learn that, what I'm guessing is, my oxygen sensor wire harness had been laying on the exhaust pipes and is now melted.