Hey Guys,
I'm down to the last problem to restoring my car to the way it was built.
The air ride system,
The compressor works, the tank fills and when it's filled, the car rises. I can't seem to control the rising or lowering. I've tested the relay and the switch and they are fine. The only part I'm not sure of is the box in the picture I've attached. The only paperwork I see is Hendrickson also in attached pics. I've found a couple of generic diagrams online but nothing truly helpful.
Any suggestions?