Air bag/leveler / ride height problems on heavy loads???

Grab a spray bottle with some soapy water and spray around the base of your air bags>one may be leaking slightly. A leaking brake chamber won't effect the air ride UNLESS you're not getting 120 psi in your air system

 

hi ,my truck has electronic display gauge and on bobtail shows about 8-9 psi, with empty trailer around 17 psi and with 34,000 pounds on drives 56 -58 psi ,if you could screw in some gauge at air ride valve and compare it might help, also leaking brake chamber on any rear end drive axle could be a problem cus its supply from the same forward air tank as rear suspension, so if broken chamber drops a pressure in forward tank system your safety check valve " sees" that and wont let air ride valve operate at proper pressure, also i would check the check valve betwen wet tank ( main supply tank)and forward tank

 

i got you some air system diagram here is very helpfull....
www.suspensionspecialist.com/techinfo/
clicn on pdf and you will see full scheme

 

maybe i did something wrong,again....
www.suspensionspecialist.com
then click on left side ===technical info
then scroll down a bit and click====air brake trouble shooting chart
and there you get whole air brake system scheme

 

What is normal suspensIon pressure for a 2014 Volvo 730 ? Bobtail, empty trailer, and 80k gross.

 

This is my problem! I've talked to two International dealers and neither one has heard of this valve, though. One thought maybe it was part of the leveler. I'm on my 5th leveler from these fools, and when they said for me to bring it in, I told them i've given up on International dealers. Sorry. Do you know what the valve looks like or even better the part number ? I've got a 2016 Prostar with Cummins engine and IROC suspension.

Thanks!

 

I depends how it was ordered. There may be a separate valve on it, or a direct supply off the air dryer from one of the accessory delivery ports. Should be a tan or brownish coloured line that feeds the leveling valve. Might have to just follow it up to see what you have there.

 

Thanks, Heavy D - will have some time after my drop-off tomorrow to look around for this.