Bit of a long shot. But does anyone know how to adjust the height/air pressure on a volvo fm7 seat? Even small bumps the seat bottoms out. Starting to get a bad back at 22! Not good!
Sounds like the ram is on it’s way out. Are there no switches or levers on the side of the seat or a valve /tap behind the seat. If it’s a direct feed then it’s the ram. Good Luck.
No levers to adjust it. There is a switch under the seat that senses when it goes up or down. I have pressed the switch with a screw driver and it is working. It did seem a little oily under the seat so you could be right about the ram.