WE just bought this 2008 Suburban a few months ago, after going around and looking for a ABS problem we found the truck has Air Bags in the back Coil spring. After searching for the air lines we found they hide the air inlet in the gas fill compartment. I checked the PSI and it show's 0. How much should I run in the bags?

The truck has a RCD 6 inch Lift with 35 inch TOYO AT'2.
any suggestions would be great!
Thanks

 

Depends how high and stiff you want the suspension... I would only use it when towing...

 

I believe there is a compressor that automatically regulates the pressure in the air ride system. If you notice, after the truck is started, you'll hear the compressor putting air into the rear suspension. So I don't think you add pressure manually.

 

Our last sub had the autoride with built in compressor. this one is definitely not factory, the coil springs a huge and the air bags are inside the coil springs. I do agree I think I will only pump them up when towing. I just not sure if i'm suppose to be 35 psi or 150 psi? I don't want to blow them up, but also want to get the most out of them.
thanks for the replies!!

 

You could probably check online for air bag suspension for a range of air pressures. I doubt it's anywhere near 35 psi.

 

Only fill them as much as needed. The Factory air ride system can reach a surprising 150 psi

I would be a bit worried though if they installed aftermarket air ride as to how much they were towing...