I just bought a 2007 350Z Roadster Enthusiast. This is my first sport car and do not know much about it. It run good and pretty fast. However it looks too low in the front and every time I drive over a fairly high speed bump, the button of my car hit the bump hard. This issue is very annoying. Is this a shock absorber problem or a tire coil issue??

SOURCE: noise running altima 2003

Sounds like you may have a wheel bearing issue based on your description. Could also be a backing plate contacting the brake rotor, but that would be a higher sounding "tinny" noise. This should be easy to determine. Jack up the rear of the vehicle and check each wheel while spinning by hand for the noise.

Nissan SCOPE Certified Technician with 12+ years experience in a Nissan dealership.

SOURCE: Rattle in front end on right side

your on the spot on both.
make sure the shock is tight on both end and have a rubber bushing bewteen the car fram and the shock. then try the shock first. take a look at spring while you have it out.
change the belt on the compressor and make sure the pulley is square on the compressor, and the any other pulley the belt goes.

SOURCE: 1994 nissan maxima OBD?

the only way i know of getting the codes from your car is to find someone with a MAC or SNAPON scanner or buy a scanner from autozone and get the adapter for the obd1 to obd2 port. hope this helps you !!

SOURCE: Low growling noise in front end

typically, this sounds like a wheel bearing. To test, the noise can often be altered by accellerating /decelerating, and more evident by turning the vehicle.

The truning process is to put load on one side, then the other. if the right side has a damaged bearing, for example, the noise would be noticibly altered (less in this case) when turning to the right. Load would be slightly less. Testing speed in the area of 25 to 35 mph.

doc

Testimonial: "Thank you for your prompt reply.I thought this might be the problem and appreciate the confirmation.First time experience with a front wheel drive car"

SOURCE: My right front tire sounds

You didn't state what the noise sounds like but here are a couple of ideas. First look at the shock absorber to see if any fluid has leaked out. If so replace the faulty shock. Jack the car up so the right front wheel is off the ground. Grab the tire with both hands and push with one hand while pulling with the other. Switch the push-pull back and forth to see if you feel a loose movement and or any noise. Next remove the wheel and check to see if the two bolts holding the brake rotor are in tack and tight. Finally, sometimes brake pads (after some wear) have a little play when not engaged and "rattle" when the vehicle bumps. If you are not satisified with what you find or don't find take the vehicle to a reputable mechanic to be checked out. Noise from a front wheel can be dangerous.