[Silvio99]

I appreciate the post. Yep, I now think it is exactly that-the auto ride air pump-cycling on and off. In fact, the other day when it went on several times while driving, we had a couple hundred pounds of grain in the back (we usually don't haul anything with this car) and it was pretty cold outside. So, sounds like it is a normal sound. If there is a leak somewhere in that system, where would I look, or how would I troubleshoot the leak? Does the air hose that comes off the pump supply the shocks with air? Thanks.