Ford F150 Pickup. Instruction - part 410

2003 BRAKES

Hydraulic Brake Actuation - F150 Pickup 

SPECIFICATIONS 

TORQUE SPECIFICATIONS 

Fig. 1: Hydraulic Brake Actuation Torque Specifications (1 of 2) 
Courtesy of FORD MOTOR CO. 

 

2003 Ford Pickup F150 

2003 BRAKES Hydraulic Brake Actuation - F150 Pickup

  

 

2003 Ford Pickup F150 

2003 BRAKES Hydraulic Brake Actuation - F150 Pickup

  

Fig. 2: Hydraulic Brake Actuation Torque Specifications (2 of 2) 
Courtesy of FORD MOTOR CO. 

DESCRIPTION & OPERATION 

HYDRAULIC BRAKE ACTUATION 

This vehicle is equipped with a brake pedal actuated dual brake system. The system consists of the following:  

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power brake booster (2005)  

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brake pedal (fixed or adjustable) (2455) 

 

2003 Ford Pickup F150 

2003 BRAKES Hydraulic Brake Actuation - F150 Pickup

  

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brake master cylinder (2140)  

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disc brake caliper (2B120)  

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rear wheel cylinders (2261) (if so equipped)  

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rear disc brake calipers (2553) (if so equipped)  

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brake tubes and hoses  

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anti-lock brake system (ABS) components  

The standard dual brake system is split front and rear, with the front brakes comprising one circuit and the rear 
brakes, the other circuit. 

Brake Fluid 

Use clean, fresh Ford High Performance DOT 3 Motor Vehicle Brake Fluid C6AZ-19542-AB or equivalent 
meeting Ford specification ESA-M6C25A. 

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Do not reuse brake fluid drained or bled from the system.  

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Do not use brake fluid that has been stored in an open container.  

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Do not use contaminated brake fluid.  

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Do not mix different types of brake fluid.  

Brake Master Cylinder 

Brake Master Cylinder Components 

WARNING:

Use of any other than approved DOT 3 brake fluid 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: Brake fluid is harmful to painted or plastic surfaces. If brake fluid is spilled 

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

 

2003 Ford Pickup F150 

2003 BRAKES Hydraulic Brake Actuation - F150 Pickup

  

Fig. 3: Identifying Brake Master Cylinder Components 
Courtesy of FORD MOTOR CO. 

The brake master cylinder is a dual-piston type. 

The brake master cylinder is assisted by a power brake booster. For additional information, refer to POWER 
BRAKE ACTUATION . 

The following conditions are considered normal and not indications that the brake master cylinder is in need of 

 

2003 Ford Pickup F150 

2003 BRAKES Hydraulic Brake Actuation - F150 Pickup