You might have a blown air bag.
Run the engine with the suspension dumped, you should get to around
125psi on both gauges. Pump the brakes to bring the pressure down as
you turn off the dump switch. If switching the dump switch back off
prevents the coach from building over 75psi then it is a suspension
leak. If it will not build over 75psi with the suspension dumped then
you have a leak or problem elsewhere, need to narrow it down.
- Jeff Miller
http://www.wanderlodge.net
http://www.millercoachworks.com
--- In
WanderlodgeForum@yahoogroups.com, "bchauvette" <bchauvette@a...>
wrote:
> I know this has been asked several times. But not having the problem
> at the time is blasted by the posting.
>
> My suspension won't air up both front and rear. I get the usual 75+
> lbs on the front and rear guages. I did notice that the air dryer
> dosn't release the ocasional air blast. WhenI toggle the susp dump
> some air does escape but nowhere near as much as if I had suspension.
> The only comonality I can see between the front and rear, by the
> scematic, is the filter regulator just behind the street side air
> tank. I took the regulator apart and didn't see anything significant.
> When I re-enstalled it I left one of the output connection off. When
I
> aired up there was air escaping from the not connected fitting, but
> how much?
>
> Any help would be apreciated;
>
> Butch "Sojourn" 83(82)FC35SB