Yes and no, depends if its an electronically controlled with sensor air bag, 1990's thru 2002 the air ride suspension is electronically controlled, if you have this you cant fill them manually, the only way you can fill a suspension manually is if you have air filled shock absorbers, there is a little black nipple on the side you add air from an air pump so your suitable air ride height, do not attempt to add air to an ECAB on lincolns.
If it has air bag suspension, air bags could be shot or the air compressor for the air bag suspension not working.
If you cannot find where to fill the air bags with air, follow the air line from each bag and see if you can find an air line connector,My thought is that it's somewhere near the airbag.
No. Buy a new bag.
how change the air bag suspention
On the air bag itself
sounds like your solenoids are leaking, usually in your air bag (suspension). or a hose.
negative.
The Firestone Air Bag suspension kit will work great for heavy off-roading, especially when mudding.
yes
There should be an air valve in the engine compartment driver side on the compressor. with a air hose (like the gas station have) you could fill it up, but you need the selonoid on the air suspension bag to open up to fill front of the car or back. In the trunk of the car next to the air supension on or off switch, you will find a lose wire with a plastic head, place that lose wire on the screw that's close by. (meaning ground) make sure air supension switch is on,and turn key on while getting ready to filled bag with air hose. open and close door to fill front air bag and repeat for back airbag. when done remove the ground wire near the on and off switch. it is actually a test to fill bag when need too. after filling bag tuen air suspension off or you will lose the air.
You can get a Firestone air bag suspension kit online from the Auto Anything website. Alternatively, you can purchase these kits online from websites such as eBay and Craigslist.
because of air exerting pressure from afar it is possible to fill the bag with air in first breath if blown from near it may take around 70 breaths to fill the bag.