A\C clutch no longer engages. Fuses are OK. Do the relys on these commonly fail, or do I recall some notes from years ago about diode failure? System has pressure. What should I attack first? Anyone else been here? Aloha, Dr. Gratz 91 200 20v Avant - getting taller PS: 2Bennet states that Koni sports have greater travel than Bilstien HD's. Anyone have a second opinion?