Ok, so on the firewall there is an exhaust air line that comes out of that air distribution block. When the parking brake is engaged(Yellow button is pulled out) and I hit the brake pedal, air leaks comes out of this at the rapid rate! Now if I disengage the parking brake(push in the button) it will not leak. Any pointers on what to look for with this?
01 770 air leak at exhaust air line on firewall
Discussion in 'Volvo Forum' started by milskired, Aug 24, 2014.
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replace both red/ yell. valve body with new not rebuilt part.
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what block? can u post a photo?
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may be u say about foot brake valve?
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