I got an issue with my air ride, it has 145k on the odom and it doesn't seem to get air to the rear of the car, I jacked it up to see if there was a leak but didn't hear anything and then when I jacked it down compressor came on and everything was fine until yesterday its back down with the red light of death!! I went ahead of the problem and got a new compressor and relay,but just wanted to ask is there anything I need to check before I do this ? Thanks for your advice !