Vacuum Power Booster Push Rod
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 1997 Ford Pickup, 1997 Ford F-Super Duty, 1997 Ford Cab & Chassis, 1996 Ford Pickup, and 1996 Ford F-Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
- Push rod has an adjustment screw to maintain correct distance between booster push rod and master cylinder piston. If push rod is adjusted too long, it prevents master cylinder piston from completely releasing hydraulic pressure, causing brakes to drag. If push rod is adjusted too short, it causes excessive pedal travel and an undesirable groaning noise in booster area.
- Remove master cylinder to access push rod. To check screw adjustment, fabricate a gauge. See Fig 1. With engine running, place gauge against master cylinder mounting surface of booster. Adjust push rod screw by turning it until end of screw just touches inner edge of gauge slot.