When I rev up my engine there is a pretty loud clicking noise under the hood. Does anyone know what it is?? Is there any way I can fix it?? Does anyone else have this clicking noise?

 

It could be something as stupid as a piece of plastic caught in the fan travel, or maybe a spark plug wire is arcing somewhere.

 

...or a leak at an exhaust gasket, or a rocker with too much lash, or a leaky lifter, or a bearing shell going south. It could be any of those. Can you provide a little more detail?

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Later,
Vader
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"Let the bodies hit the floor!"
Adobe Acrobat Reader

 

I just had it tuned. It seems to be coming from the passangers side and I thought it was the catalytic converter, but its not. I was thinking it had something to do with the fan blade, because its plastic.