Ford F150 Pickup. Manual — 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:

z

power brake booster (2005)

z

brake pedal (fixed or adjustable) (2455)

2003 Ford Pickup F150

2003 BRAKES Hydraulic Brake Actuation - F150 Pickup

z

brake master cylinder (2140)

z

disc brake caliper (2B120)

z

rear wheel cylinders (2261) (if so equipped)

z

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

z

brake tubes and hoses

z

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.

z

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

z

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

z

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