Forum Discussion
Ivylog
Sep 11, 2017Explorer III
Not sure why you thought parking with the brakes off was a good idea or that they would not engage when the air pressure dropped. Sounds like you need to study up on air brake operations. Since it's a loud noise you should be able to find where it's coming from. I would try engage the parking brake several times.
PS: Welcome to the forums.
PS: Welcome to the forums.
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