1993 Ford E-150 Econoline Brake Service (ONLINE REPAIR MANUALS)

Bleed primary and secondary hydraulic brake systems separately, bleeding the longest line first on each system. Do not allow reservoir to run dry during bleeding operation. Never reuse fluid that has been drained from the hydraulic system.

• Loosen master cylinder to hydraulic line nuts and wrap shop cloths around tubing below fitting to absorb escaping brake fluid.
• Depress brake pedal slowly forcing air trapped in master cylinder out at fitting.
• Hold pedal down and tighten fittings, then release brake pedal. Releasing brake pedal before fittings are tightened will allow air to en...

Service Brake

The rear brake shoes adjust automatically when the vehicle is driven in reverse and the brakes are applied sharply several times. Manual adjustment is required only when brake shoes are replaced. When adjusting rear brakes, ensure parking brake is properly adjusted and equalizer is operating freely.

Drums Removed

• With drums removed, clean areas where shoes contact backing plate, then apply suitable lubricant to these contact areas. Ensure lubricant does not contaminate linings.
• Using suitable brake shoe adjusting gauge, adjust gauge to inside diameter of brake drum.
• Reverse...

When working on or around brake assemblies, care must be taken to prevent breathing asbestos dust, as many manufacturers incorporate asbestos fibers in the production of brake linings. During routine service operations, precautions should be taken to minimize exposure. Do not sand or grind brake linings unless suitable local exhaust ventilation equipment is used to prevent excessive asbestos exposure.

• Wear a suitable respirator approved fo...

Bronco, E-Series & F-Series

Ensure booster rubber reaction disc is properly installed as shown, Fig. . A dislodged disc may cause excessive pedal travel and extreme operation sensitivity. The disc is black compared to the silver colored valve plunger that will be exposed after the pushrod and front seal are removed.

1992-94

The booster unit is serviced as an assembly and must be replaced if the reaction disc cannot be properly installed and aligned, or if it cannot be located within the unit itself.

• Disconnect battery ground cable.
• Disconnect stop lamp switch electrical con...

Aerostar, Explorer & Ranger

• Remove caliper as described under "Caliper Service," leaving brake hose connected.
• Secure caliper with wire so that caliper is not hanging with weight on brake hose.
• Compress anti-rattle clip, then remove inner pad from caliper.
• Press each ear of outer pad away from caliper, slide torque buttons out of retention notches and slide pad off caliper.
• Reverse procedure to install, noting the following:
• Use an eight inch C-clamp and a worn inner pad or block of wood to bottom out caliper piston in bore.
• Install new anti-rattle clip on lower end of inner pad.
• Refill...

Excessive Pedal Travel

• Worn brake lining.
• Shoe and lining knock back after cornering or rough road travel.
• Piston and shoe and lining assembly not properly seated or positioned.
• Air leak or insufficient fluid in system or caliper.
• Loose wheel bearing adjustment.
• Damaged or worn caliper piston seal.
• Improper booster pushrod adjustment.
• Shoe out of flat more than .005 inch.
• Rear brake automatic adjusters inoperative.
• Improperly ground rear brake shoe and lining assemblies.

Brake Roughness or Chatter; Pedal Pumping

• Excessive lateral runout of rotor.
• Rotor excessively out of parallel.

Excessive P...