How to Replace a Master Cylinder

The master brake cylinder of your vehicle may get damaged or stop working due to some reason. In this case they must be replaced as soon as possible. Almost every vehicles despite of their model, make and functions, have the same kind of master cylinder design and actions. It is pretty simple and easy to replace a master cylinder and will take you to do it in about one or two hours. Here’s how to replace a master cylinder of your vehicle.

Things you’ll need:

The things you will require take in the following:

• Suction tool
• Empty container
• Open-end wrench
• Socket wrench set
• Brake fluid
• Floor jack
• Jack stands (four)
• Lug wrench

Step 1

First of all come across the master brake cylinder of your vehicle which you will find in the engine compartment on the driver’s side of the firewall.

Step 2

Uncap the master cylinder, and after that take a suction tool to take the brake fluid out of the cylinder; deposit the removed fluid in a vacant container.

Step 3

Now unclip the safety clips to put the fluid-level electronic sensor away from the side of the master cylinder. And afterward unplug the electrical wire connector from the cylinder

Step 4

Now use an open-end wrench to make loose the hydraulic brake lines from the side of the master cylinder and then turn it in anticlockwise direction to release the bolts; then softly put the lines aside from the cylinder.

Step 5

Next make use of a socket wrench to remove the master cylinder from the firewall by loosening the nuts on each side of the cylinder. Slip the master cylinder away from the firewall and then take it away from the engine compartment.

Step 6

Remove the bolts on the firewall. Then slip the master cylinder away from the firewall and after that take it out of the engine compartment.

Step 7

Place the new master cylinder on the firewall above the bolts, and make it secure by tightening the nuts by means of a socket wrench. Now attach the fluid-level electronic sensor again to the cylinder side.

Step 8

Put the hydraulic brake lines in the master cylinder side, and make them secure by tightening the threaded bolts into the cylinder by an open-end wrench.

Step 9

Take the cap away from the new master cylinder and then fill it with brake fluid until unless the cylinder is properly filled. Restore the cap.

Step 10

Pick up the car up by means of a floor jack. Put four jack stands underneath the front and back axles to lift up each tire.

Step 11

Now use a lug wrench to remove all these four tires to get to the brake fluid valves on each wheel, found on the back side of the wheel.

Step 12

After that take an open-end wrench to open the valve at each wheel, and after that ask a partner to step on the brake pedal and grasp it down until you turn and close each valve at the wheels.

Step 13

Do again Step 12 until unless the brake pedal is stiff enough at the top when it is depressed; after doing this mount the tires back onto your vehicle.

Step 14

Raise the car up by means of a floor jack and take out each jack stand until unless the vehicle is sitting on all four tires; and after that take away the floor jack.

Step 15:

Uncap the master cylinder and fill it back up to the top with brake fluid. Finally put the cap back on its top.