2000 Western Star Cab Air Bags

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Inspector6077, Jan 18, 2020.

  1. Inspector6077

    Inspector6077 Bobtail Member

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    Jan 18, 2020
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    I have a 2000 Western Star, we have put new cab air bags on, a new leveling valve, and a new sway bar/dog bone on cab. The air bags were rising fine till we blew one which led to all this new, they were raising up with 120 pounds of air presure started truck this morning and they worked, went down the road about 60 miles and they are not raising at all, any suggestions?
     
  2. 062

    062 Road Train Member

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    It’s possible that the new leveling valve is bad, but there may be a pressure protection valve in line.
    I’d pull the supply line off the leveling valve and see if you have air. If not trace the line back toward the air tank looking for a protection valve.
    @QUALITYTRUCK may have a better idea.
     
  3. AModelCat

    AModelCat Road Train Member

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    Rod on leveling valve slipped or broke?
     
    SAR and baha Thank this.
  4. SAR

    SAR Road Train Member

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    Is it possible you over tightened the sway bar ends and it's binding?
     
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