Quote:
Originally Posted by powerboatr
100 lbs is not enough to trip the inflate valve,
i would run engine at high idle to see if it build to 120. then shut off and go out and listen for leaks
my coach will no start filling bags until at 110 psi, or if the bus was lifted real high and it over stroked the height valve it will not inflate bags until its lowered down , and cycle the dump valve
call freight liner 24/7 line and tech can walk you through several things
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Dove tailing on your post
Best way is to dump the air bags starting completely over
As noted above you will need 100 psig plus to completely fill the air bags
If your air filter/desicant hasn't been changed in a few years that could be an issue or a place for a leak
Check around your dump valves for leaking air
The low air psig really indicates a leak in either a line, fitting, valve, or bag
As PB noted, check with the engine off as it is really hard to hear back by the engine when running