Ford F150 Pickup. Instruction - part 344

Fig. 20: Identifying Rubber Drain Tube Connected To Bleeder Screw 
Courtesy of FORD MOTOR CO. 

1. Place a box end wrench on the disc brake caliper bleeder screw (2208). Attach a rubber drain tube to the 

disc brake caliper bleeder screw, and submerge the free end of the tube in a container partially filled with 
clean brake fluid.  

2. Have an assistant pump the brake pedal (BP) (2455) and then hold firm pressure on the brake pedal.  

3. Loosen the disc brake caliper bleeder screw until a stream of brake fluid comes out. While the assistant 

maintains pressure on the brake pedal, tighten the disc brake caliper bleeder screw. 

 

2003 Ford Pickup F150 

2003 GENERAL INFORMATION Brake System - General Information - F150 Pickup

  

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Repeat until clear, bubble-free fluid comes out.  

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Refill the brake master cylinder reservoir (2K478) as necessary.  

4. Tighten the disc brake caliper bleeder screw. Refer to SPECIFICATIONS. 

Fig. 21: Identifying Disc Brake Caliper Bleeder Screw 
Courtesy of FORD MOTOR CO. 

BLEEDING - SYSTEM 

Instruction 

 

2003 Ford Pickup F150 

2003 GENERAL INFORMATION Brake System - General Information - F150 Pickup

  

1. Connect the scan tool DCL cable adapter into the vehicle data link connector (DLC) under the dash and 

follow the scan tool instructions.  

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

reservoir with the specified brake fluid. 

WARNING:

Use of any brake fluid other than approved DOT 3 or DOT 4 will cause 
permanent damage to brake components and will render the brakes 
inoperative.

WARNING:

Brake fluid contains polyglycol ethers and polyglycols. Avoid contact 
with eyes. Wash hands thoroughly after handling. If brake fluid contacts 
eyes, flush eyes with running water for 15 minutes. Get medical attention 
if irritation persists. If taken internally, drink water and induce vomiting. 
Get medical attention immediately.

CAUTION: Do not allow the brake master cylinder reservoir to run dry during the 

bleeding operation. Keep the brake master cylinder reservoir filled with the 
specified brake fluid. Never reuse the brake fluid that has been drained 
from the hydraulic system.

CAUTION: Brake fluid is harmful to painted and plastic surfaces. If brake fluid is 

spilled onto a painted or plastic surface, immediately wash it with water.

NOTE:

When any part of the hydraulic system has been disconnected for repair or 
installation of new components, air can get into the system and cause spongy 
brake pedal action. This requires bleeding of the hydraulic system after it has 
been correctly connected. The hydraulic system can be bled instructionly or with 
pressure bleeding equipment.

 

2003 Ford Pickup F150 

2003 GENERAL INFORMATION Brake System - General Information - F150 Pickup

  

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