Volvo rough ride
Discussion in 'Volvo Forum' started by Igor9113, Apr 14, 2020.
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Is there a way to know if the front cab bushings are bad?
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Thanks. I think my cab sits level, but I'll look again. I did increase the cab bag pressure via the valve after I replaced the shocks, but I think I'll lower it back down.
My suspension leveler valve leaks a bit of air, especially right after I park, so I need to change that. -
Your cab air springs don't look Volvo oem, (actually i'm not sure, because i always owned 770/780, maybe 670,/610 has different cab air springs ). Few years ago i was in a small shop and they order some small bags like yours for my 780 and i told them to bring the right air springs.
See bellow i attached a photo from my phone , yours have smaller diameter and are narrow plastic seat at the bottom and wider top, the oem are wider at lower side, i doubt are for Volvo.
Smaller airbags requires higher pressure to lift same weight / the cab, and can get rough.
This is what i can see first, but i doubt is your problem, what steer axle do you have, Hendrickson steerteck air ride or Merittor simple leaf springs/shocks only?Attached Files:
Last edited: Apr 17, 2020
Igor9113 Thanks this. -
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Didn't you say you replaced them?Igor9113 Thanks this. -
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daf105paccar Thanks this.
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Thank you guys for helping. I set cab air bags lower and now it's more better when I’m loaded but not perfect also when I was driving empty was the same problem bouncing and jumping now I think maybe Axle air bags need to be a problem too ??
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