front end noises, help!

hello everyone its been a while since i posted on here but some new problems have arrose since then... well #1 when i turn to the left i hear a vibrating noise like something is shaking over near the passenger side its almost like sumthing is loose or rattling around over there, this was happening for the first month when i got the car on the drivers side but eventually it stopped now its happening on the pass. side ok #2 when i am going over a speed bump or sumthin of that sort and the front of the car dips down and then back up i hear a thumping noise and i also hear it once in a while while cornering to the left... and last but not least when turning the wheel like to get out of a parking spot i hear sort of a grinding sound that stops once i stop turning the wheel i also hear it when turning corners etc... i know i have alot of issues here and im gonna have my mechanic check them out but i though i would get some input off of here first thanks everyone...

According to a couple reliable sources, a sliding coupling in the steering column requires occasional lubrication, although there's no safety issue. I looked and decided that access to the steering column was nearly impossible, so I've been trying to ignore it.

Yep, The lube in the front cost about $80 at the dealership. It will take care of the front end and make it feel tighter. Only takes about 1/2 hr. Good luck