I drive a Volvo 780 which has air bags on the steer axle. After the truck has been shut off for a few hours BOTH bags completely deflate. I can not see (soapy water and spray bottle) nor here where the air is leaking from. They both inflate quickly when I start the truck and the compressor has no problem keeping them inflated but I would like to get this fixed IMMEDIATELY before I get placed oos.
Anybody have any suggestions to help me locate the leak?
Volvo 780 front air bags deflating
Discussion in 'Trucks [ Eighteen Wheelers ]' started by hunts2much, Jan 26, 2011.
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Follow the lines and spray water on each connection. Also check the front suspension air ride leveling valve.
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Is your truck with ECAS ore just levelling valve on front axe?
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Not sure what ECAS is but it does have a leveling valve on the front, which is less than a month old.
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sometimes levelling valve looses air and no sssss sound. so the only way is to get bottle with soap water and find problem from underneath
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Check air tanks. Thats what happened to me. Front tank was leaking thru bad weld.
Last edited: Feb 3, 2011
hunts2much Thanks this. -
hunts2much Thanks this.
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josh.c and hunts2much Thank this.
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hunts2much Thanks this.
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the bags going flat after a few HOURS is not an OOS violation. the only oos violation is if there was an audable leak bad enough that the compressor couldn't keep up
hunts2much Thanks this.
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