Ok I did rear lower control arm bushings this week...After finishing it looked like the RR was low and sometimes OK...Now after a few days I start the car in park, and bounce the back end and the rear suspension goes right up about a half inch. As soon as it goes up the RR drops down that half inch in about 8 seconds and stays there...Left rear holds fine...There are no lights or warnings on the dash and the front works fine...So I am guessing it must be a leak from the tank line (red) to the airspring or the connections or the spring itself...How can I test the system if the pressure is not holding? Thanks

 

What about the height sensors? Did you by chance move one with the work you did?

If the corner sits 1/2" low and you dont hear the pump maybe the car thinks it has the correct height?

 

Thanks Jackra...I was on my way home and started thinking the same thing...The pump is not running continually like you mentioned...Do you know if I need to tweak the leveler bracket up or down to raise the suspension???

 

To raise the suspension I believe you tweak it down. By tweaking it down the computer will think it is too low and raise that corner.

 

The correct way to adjust suspension height is using the correct calibration software on a lap-top plugged into the diagnostics socket and measure actual heights then follow the instructions. I had to have this done some time ago and no problems since. It was done at a local Jaguar independent.