I am new at this, I just bought a 2008 Titan SE Crew. It has 800 miles on it, and am having problems already. I noticed on the driver side rear tire some black grease on the inside of the rim. It looks like its coming from the backing plate area. another problem, the passenger side front carpet is getting soaked when using the A/C. The front end seems to rattle over bumps also. Any one else with these problems?