Since you guys were so great with that, maybe you can help me with something. I've noticed a mild vibration at 900rpm that seems to be getting worse, slowly. I'm wondering if the harmonic balancer might be lose. (That's what Google said to check, anyway.)
I heard that if it moves at ALL when you try to do so with your hand, it needs to be replace. Wonderful... now where the hell is it? I'm sure I can find it rather easily, I just have no idea what I'm looking for.
Care to shed some insight?
--EDIT--
I know every engines going to vibrate... they're not perfect. This smooths out at 1,000rpm and above, and there's nothing like it at the car's 800rpm idle. Running the A/C, however, will cause the car to switch between an 800 and 900rpm idle, which is why I've even noticed it at all. With the A/C off, the car sits at 800rpm and everything is fine and good. If I feather the throttle to 900, however, the vehicle begins shaking. I've got it on video, and it's actually enough to shake the picture, so if anyone's interested in seeing it I can certainly do it again to show you. (I was talking with the radio on in this video... it's like 5 minutes of condensed bore.)