Just purchased a new truck haven't even gotten to drive it yet. The air dryer is making a spitting/spewing noise at times and WABCO is saying it is supposed to do this now. Has anyone else with the 2022 models had this same issue? It does not make this noise all the time. From mechanics we have asked they have said no it's not supposed to make this noise and it could possibly damage the air compressor.
Has anyone else experienced this issue and if so what did you find out about it?
2022 Freightliner Cascadia Air Dryer Noise
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by K&G Trucking, Nov 11, 2021.
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I've had experience with this, and it's normal. It's the regeneration cycle of the dryer. It should purge, then you'll hear air leaking. It should be more than 10 seconds, but less than 30. If its a rapid spitting noise, check out this bulletin. I've attached the manual for Wabco System Saver air dryers also. Not sure what model you have, but it may help.
Attached Files:
Goodysnap Thanks this. -
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Thank you for replying. Do you know how long it should do that cycle? This is a brand new truck 2022 only had 8 miles on it. It did it for like 30-40 min nonstop. We took it back to Freightliner that we bought it at and they were researching why it was doing it. They are trying to tell us it’s ok and come get it. We are just afraid it’s not right that it shouldn’t do it for that long. How often should this occur?
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