Front end noise

[trollbait]

I've been getting a low creak or rattle from the front end of the HHR. It's pronounced at low speeds. Road and wind noise noise might just be drowning it out at high speed. It mostly corresponds to bumps, but some of those bumps are to slight for me to feel.

About two years ago, when I got new tires, the tech noted that all the struts/shocks were leaking. He told a dealer would likely claim it's normal. He was right, but the dealer did replace one of them under warranty.

I replaced the rotors and pads last year.

I expected more rattling with the use of higher tire pressures(55psi). With warmer weather, I'll have a chance to take a close look at things. So what should I look for and test to make sure a serious problem isn't developing. Did the basic press down on the bumper. The end came up, then settled right down to normal height.

Thanks