you don't computer controlled, or replace the suspension (shudder) expensive.
there is no way to adjust the ride height other then aftermarket suspension parts
there is a lever behind your wheel, it looks like a upside down L and its attached to a ball, take the pins out lift the L off the ball and adjust it by moving it up or down,their maybe a few extra steps but that's whats adjust your height..
No you can not, at least not with the original or OEM suspension.
There is a ball joint on the lower control arms of the suspension that allows a rod to connect to a ride height sensor and this is how it figures out what the suspension is doing and it uses a hydraulic system to change the suspension.
you have to have a special height sensor tool that can adjust it for you, go to the local parts store and see if they sell it, or if your lucky enough to have a friend that has one.
I am pretty sure the dealer can do it or you can but a NGS scan tool or something similar.
It is a valve in the brake lines going to the rear of the vehicle. It adjust the amount of fluid flow to the rear brakes depending on the height of the rear suspension. The lower the suspension, the more weight in the vehicle, the more rear braking power is needed.
Sounds like you have a leak in the air suspension. Check out if it does or it will burn out the pump. Monroe makes a replacement set up for the " air -Ride". It runs you around a grand to have it replace the OEM design.
No it should not. They have a ride height switch, which cycles the compressor. You probably have an air leak in the system.
Yes, there are height sensors on both front air bags and 1 on the drivers side rear. All three can be adjusted.
The Torsion bar is a suspension component. It essentially "twists" ever so slightly to adjust ride height. This is adjusted by a special tool specific to the manufacturer.
Most Montana's have a rear air suspension in them (air shocks). The compressor is there to adjust the rear height of the vehicle depending to weight in the van.