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Unread 04-04-23, 04:51 PM
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mshac mshac is offline
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My understanding is the parking brake valve closes the brake line while pressure is held on the brakes, allowing the brakes to stay "set", with the pressure remaining in the line.

A failed parking brake valve would potentially keep you from setting the parking brake, but unless its also leaking fluid, I don't see how it could affect your brakes.

Attached are a few relevant pages from the P337H service manual:

Name:  P337H Brake System 1.JPG
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Name:  P337H Brake System 2.JPG
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Name:  P337H Brake System 3.JPG
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