Ford F150 Pickup. Manual - part 436

1. Remove the brake master cylinder (2A032). For additional information, refer to MASTER 

CYLINDER . 

2. Adjust the power brake booster to brake master cylinder push rod, vacuum applied. 

1. Measure the power brake booster to brake master cylinder push rod.  

2. If necessary, adjust the screw to the correct length. Refer to SPECIFICATIONS . 

Fig. 3: Adjusting Power Brake Booster To Brake Master Cylinder Push Rod 
Courtesy of FORD MOTOR CO. 

CAUTION: Do not apply the brake pedal with the master cylinder removed from 

the booster.

 

2003 Ford Pickup F150 

2003 BRAKES Power Brake Actuation - F150 Pickup

  

3. Install the brake master cylinder. For additional information, refer to MASTER CYLINDER Section .  

REMOVAL AND INSTALLATION 

BRAKE BOOSTER 

Removal 

1. Remove the brake master cylinder (2140). For additional information, refer to MASTER CYLINDER .  

2. Disconnect the power brake booster hose. 

1. Compress the clamp.  

2. Disconnect the power brake booster hose.  

Fig. 4: Disconnecting Power Brake Booster Hose 
Courtesy of FORD MOTOR CO. 

3. Remove the stoplight switch (13480) self-locking pin. 

NOTE:

Use new nuts when installing the brake master cylinder.

 

2003 Ford Pickup F150 

2003 BRAKES Power Brake Actuation - F150 Pickup

  

Fig. 5: Removing Stoplight Switch Self-Locking Pin 
Courtesy of FORD MOTOR CO. 

4. Slide the stoplight switch and booster push rod off the brake pedal pin. 

 

2003 Ford Pickup F150 

2003 BRAKES Power Brake Actuation - F150 Pickup

  

Fig. 6: Removing Stoplight Switch & Booster Push Rod 
Courtesy of FORD MOTOR CO. 

5. Remove the bulkhead sound insulator. 

 

2003 Ford Pickup F150 

2003 BRAKES Power Brake Actuation - F150 Pickup