The air bags, like the tires on our rigs, do not last forever. I replaced mine about 10 years ago and altho they were not leaking yet, looking at the cracks in the rubber, not far behind. The bags have an internal stop to keep the rig from going to low. Somewhere I saw that if there is no air in the bags, only do 45 mph max! This is due to the springs, they way they are cut off in the back for the air ride carrier, almost not effective.
Here is the carrier system. (good shot with the fuel tank removed)
I replaced my almost not effective compressor about 5 years ago and also put in an aluminum air tank.
This is what the new compressor looks like in its home.
I have a line going up front for my air horns, and a gauge on the dash so I can monitor the pressure. This rig does not start lifting until 75 to 80 psi. The compressor comes on at 90 and off at 105 psi.
I have also run a heave gauge wire to the battery (6 gauge) back to a relay by the compressor. Now the only thing the light wire that was used the run the compressor, only has to operate the relay! Very low voltage drop now will help with the life of the compressor and runs much better.
My air bags will stay up for days! Hope this helps.
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Chris & Brenda....................cMADMAXman
AIR Member 12654
1991 350LE "Zephyr"
1982 310 MoHo (Sold! New home, NYC.)
Many Years ago, 1972 Argosy 24' trailer
Toad, 2001 Chevy Tracker 4x4