[HummerJim]

There are many more knowledgeable than me, however, being on the board a long time and reading several air suspension posts, and having air suspension on my H2 I can tell you it's normally not the air bags, but instead a bad sensor, or a loose or broken wire to the sensor, or mud and gunk on the sensor, or the sensor needs adjustment. As for your air bags, when I bought my H2 new the service dept said to spray them with Armorall three or four times a year and they would stay in good condition - so far so good!