i am experiencing a loud click sound from the rear

[mohsinin]

When I drive over a speed bump I am experiencing a loud clicking sound from the rear of the vehicle and I am uncertain what it maybe, please help. Also a new air suspension compressor was installed in my vehicle in February 2010 and now I see my vehicle slightly lean towards the right, what may this be.

[Bijujohn]

Is that the same clicking noise that you usually hear when compressor starts or stop thats the air valve shut off noise.

Car leaning is different issue, either your leveling sensor is gone or not working properly or one of your right side air ballon is leaking and cant hold the pressure in that case you must be experiencing that compressor is on MOST OF THE TIME.