W900 rough ride

The brand of tires have a huge effect on ride. What brand tires do you have? On one of my trucks I had Michelin XZA 2 on the steering, and my friend with an identical truck from the same fleet had XZA 2 front tires.

He drove my truck and could not believe the difference in the ride. He soon switched to the XZA 2 like I had, and his truck then rode as good as mine.

 

Is this the 8 bag airride with the short bags on it? If so,thats your problem!

 

Get back on the road! Stay out of the corn fields out there in Iowa!

 

Check the cab shocks by the air bags, if they are bad you have a rough ride, but i think i would leave the cab air bags at factory spec.

 

If you lower the volume of air in the cab air bag all you do is lower the height. If the height is lower chances are the cab is bottoming out all the time.

 

That's not necessarily true...I have 8 Bag with the short bags on it and my W900L rides as smooth as glass. I had a ride issue recently and it turned out to be the leveling valve was going out. I replaced it and the problem went away. Check your rear shocks as well 'cause they can make the ride a little choppy.

I pull the same trailer most of the time and a few months ago I had a vibration that I couldn't find and I finally figured out that it was the shocks on my trailer...Go figure.

I would never recommend lowereing the air ride on the cab 'cause that can make the truck ride rough as hell and it can bottom out on severe bumps and that's never a good thing.

 

hey... my truck is giving me rough ride too its getting worse everyday.. took to many mechanics nobody found anything yet.. it bounces and shakes everything inside when its the bumps even a small bumps... got checked up everything .. kingpins, bushing, got new shocks,.. checked air bags they have proper air in those.. i think its the problem with air ride thing does any body know what it could be??? ..... how i am gonna know if the leveling air valve going out?? seems like ok .... when i ride its the same ride as truck have too much air pressure in tires i have 100 psi air pressure in tires and air bags have proper air pressure... it runs good it causes problem only on bumpy road or messy roads... can some body help me out???