1995 Chevrolet P30 Air Bag Pressure

Right now I have them at 80psi. After the old bags were replaced the front end did come up noticeably. Before it looked like a hod rod with the nose to the ground. Now it is sitting just about level. I put a level inside the freezer and it's actually sitting a little nose high

dougrainer wrote:
P30 air bags in the FRONT coil springs are NOT to level the motorhome. They are required and designed to INCREASE the front suspension load carrying capacity. Nothing else. AND you use the Chevy recommended pressures. Doug

This is the correct answer.

DougE wrote:
I think one thing the air pressure pundits overlook is a primary function of the airbags to level the RV. Chevy had no idea how much load the RV manufacturers would be putting on the front end so the airbags give the ability to level the unit. So find a level slab, put a level on the RV floor and adjust the airbags accordingly. You may even find that getting the top of the wheel well even on both sides may require different pressures in each side.

On the P32 chassis the air bags have nothing to do with leveling the unit. They are for assisting the springs and adjusting for suspension loading, (the amount of weight being carried) and maintaining the ride
height.
Both bags should have the same pressure at all times.

P30 air bags in the FRONT coil springs are NOT to level the motorhome. They are required and designed to INCREASE the front suspension load carrying capacity. Nothing else. AND you use the Chevy recommended pressures. Doug

Check vin number for what the front end is rated.
Weigh the rig.
Adjust air according to percentage based on Air Lift manual.
70 pounds would be about min. I would guess closer to 80-85 PSI.

I think one thing the air pressure pundits overlook is a primary function of the airbags to level the RV. Chevy had no idea how much load the RV manufacturers would be putting on the front end so the airbags give the ability to level the unit. So find a level slab, put a level on the RV floor and adjust the airbags accordingly. You may even find that getting the top of the wheel well even on both sides may require different pressures in each side.

harold1946 wrote:
I suggest 70 psi. as a good starting point. Then adjust from there, up or down until you find the sweet spot, where the ride and handling suit you best.
I do not recommend going below 50psi.

X2. When all else fails and mfgs say something different than other mfgs go somewhere in the middle.

I suggest 70 psi. as a good starting point. Then adjust from there, up or down until you find the sweet spot, where the ride and handling suit you best.
I do not recommend going below 50psi.