Posted 3/10/2013 19:42 (#2956085 - in reply to #2955343) Subject: Re: 59 F600 hyd brake trouble
check the vacuum at the booster. I have seen the vacuum supply hose collapse inside. If you replace the hose make sure you use a hose rated for vacuum and not a heater hose. The wrong hose can collapse under high vacuum conditions. (going down a hill with the throttle plates closed)