Ford F150 Pickup. Instruction - part 432

Fig. 86: Prying Up On Brake Master Cylinder Reservoir  
Courtesy of FORD MOTOR CO. 

Installation 

NOTE:

Whenever installing a new brake master cylinder reservoir, install new 
grommets.

 

2003 Ford Pickup F150 

2003 BRAKES Hydraulic Brake Actuation - F150 Pickup

  

Fig. 87: Disassembling Master Cylinder 
Courtesy of FORD MOTOR CO. 

1. Install the brake master cylinder reservoir. 

1. Lubricate the two grommets with High Performance DOT 3 Brake Fluid C6AZ-19542-AB or 

equivalent DOT 3 fluid meeting Ford specification ESA-M6C25-A, and insert the grommets in the 
brake master cylinder.  

2. Press the brake master cylinder reservoir into the grommets until it snaps.  

3. Connect the brake master cylinder fluid level warning switch.  

4. Fill the brake master cylinder reservoir with High Performance DOT 3 Brake Fluid C6AZ-19542-

AB or equivalent DOT 3 fluid meeting Ford specification ESA-M6C25-A.  

DISASSEMBLY & ASSEMBLY 

MASTER CYLINDER 

 

2003 Ford Pickup F150 

2003 BRAKES Hydraulic Brake Actuation - F150 Pickup

  

Disassembly 

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

CYLINDER .  

2. Clean the outside of the brake master cylinder.  

3. Remove the brake master cylinder filler cap (2162) and drain the remaining brake fluid. 

Fig. 88: Removing Brake Master Cylinder Filler Cap 
Courtesy of FORD MOTOR CO. 

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

  

4. If equipped, remove the brake pressure switch (9F924). 

Fig. 89: Removing Brake Pressure Switch 
Courtesy of FORD MOTOR CO. 

5. Remove the brake master cylinder fluid control valve (2C161). 

 

2003 Ford Pickup F150 

2003 BRAKES Hydraulic Brake Actuation - F150 Pickup