[87MH]

There have been many threads here where the workings (and non-workings) of the air compressor and air suspension have been discussed -- some with pictures.

To answer your question - absolutely the air system can be utilized for any air requirement via the access quick connect in the storage bay. There is enough volume in the tank to top off all of the tires and front airbags.

If you trace out the line, you will find the quick conntct is Teed off of the line FROM the tank TO pressure sensor next to the compressor that the electrical start sensor is connected to. The compressor discharges to another line that enters into the top of the air volume tank, with a check valve installed at the entrance to the tank. The line between the compressor and the check valve is bled off via another solenoid that opens whenever the compressor is not operating. The check valve on the top of the tank prevents the air from escaping while the compressor diischarge line is open to the atmoshere. This set up is provided to allow the compressor to start against a "0" psi head, and not having to rely on the discharge valve of the compressor to hold 100% against tank bleedoff.

Any pressure you read at the accessory quick connect will be the pressure in the tank. There is also a Schrader valve (looks like a tire stem valve) at the bottom of the volume tank. This valve should bve opened periodicaly to drain any condensate water from the volume tank. Either of these valves can bu used to add or remove air from the tank.

Do you know where the dash air pressure line gets its source? My 345 does not have a dash mounted air pressure guage.

Do a search on "Air Bag Height" †o get an idea if your rear airbags are properly inflated.

On the noise thrown off by the compressor, AS did a pretty good job of eliminating compressor noise from the cabin. I have to have the compressor access hatch open, and be in the bedroom before I can hear it running.

There should be 80 to 100 psi in the tank during "normal" operation, but the airbags may operate properly with significantly less, depending on the load.