Posted by Kaegi on Tuesday, March 31, 2009 at 02:08:06 :
In Reply to: OT Soft Brakes in a Ford F350 posted by Ed Tavernier on Monday, March 30, 2009 at 22:43:21 :
Paul, not positive on 97 fords but earlier rigs used a vacuum pump, belt driven to power the vacuum power brake unit.
Sounds like the MC is bypassing internally. replace or rebuild.
Follow Ups: