Originally posted by fresh95
I can't believe no one suggested a wheel bearing.

Here's the reason;

Originally posted by Acidfried
there's a ticking sound under the hood of my car that changes with the rpm's.

That's why people are suggesting that it may be something loose.

OP, check for an exhaust leak. Block off muffler with a rag (don't stuff it in there, just hold it over end) and listen for hisses. It could be that the leak is only evident as you turn a certain way.