I have a leak in my right front air bag valve that requires the compressor to run more than it should. Dealer wanted $800.00 to fix leak and another $800 to replace compressor, which they claim would be weak from overuse. Car is a 1999 4.0, and there must be a better way to go. Air system works fine-will go up or down as requested, but noisy compressor is a pain. Help..Thanks