Ford F150 Pickup. Manual - part 381

Fig. 22: Identifying Brake Master Cylinder Filler Cap 
Courtesy of FORD MOTOR CO. 

NOTE:

Bleed the brake system in the order displayed on the scan tool.

 

2003 Ford Pickup F150 

2003 GENERAL INFORMATION Brake System - General Information - F150 Pickup

  

Fig. 23: Identifying Rubber Drain Tube Connected To Bleeder Screw 
Courtesy of FORD MOTOR CO. 

3. Place a box end wrench on the bleeder screw. Attach a rubber drain tube to the bleeder screw and 

submerge the free end of the tube in a container partially filled with clean brake fluid.  

4. Have an assistant hold firm pressure on the brake pedal.  

5. Loosen the bleeder screw until a stream of brake fluid comes out. While the assistant maintains pressure 

on the brake pedal, tighten the bleeder screw. 

z

Repeat until clear, bubble-free fluid comes out.  

z

Refill the brake master cylinder reservoir as necessary.  

6. Tighten the bleeder screw. 

 

2003 Ford Pickup F150 

2003 GENERAL INFORMATION Brake System - General Information - F150 Pickup

  

Fig. 24: Identifying Rubber Drain Tube Connected To Bleeder Screw 
Courtesy of FORD MOTOR CO. 

7. Repeat Steps 3, 4, 5 and 6 for the remaining bleeder screws in the system.  

Pressure 

1. Clean all dirt from and remove the brake master cylinder filler cap and fill the brake master cylinder 

reservoir with the specified brake fluid. 

 

2003 Ford Pickup F150 

2003 GENERAL INFORMATION Brake System - General Information - F150 Pickup

  

Fig. 25: Identifying Brake Master Cylinder Filler Cap 
Courtesy of FORD MOTOR CO. 

2. Install the bleeder adapter to the brake master cylinder reservoir, and attach the bleeder tank hose to the 

fitting on the adapter. 

NOTE:

Master cylinder pressure bleeder adapter tools are available from various 
manufacturers of pressure bleeding equipment. Follow the manuals of 
the manufacturer when installing the adapter.

NOTE:

Bleed the longest line first. Make sure the bleeder tank contains enough 
specified brake fluid to complete the bleeding operation.

 

2003 Ford Pickup F150 

2003 GENERAL INFORMATION Brake System - General Information - F150 Pickup