The auto parts experts of leading Man Spare Parts and Man truck parts suppliers explain what role power steering plays for the vehicle’s steering system is similar to the role Power Brake Booster plays in the car’s car braking system. They would like to ask you few questions in reference to power brake booster failure. Is your car taking too long to come to a complete stop after applying brakes i.e. pushing the brake pedal all the way down to the ground? Are you tired of consistently pressing the brake pedal yet your car doesn’t seem to come to a complete halt? These scenarios indicate that there is something wrong with your car braking system. One of the main reasons for this to happen is because your car’s brake booster, the device that assists the car brake system, has malfunctioned or worn out because of leaks.
Paying utmost attention to the fact that a brake booster assists the car braking by controlling the amount of pressure created from the master cylinder to the brakes causing a stoppage, it is important to repair the power brake booster as soon as possible. Even with a bad brake booster, you can surely drive in a normal traffic, but during unfortunate circumstances when you really need to bring the car to a complete halt in a hurry, due to bad brake booster it will take longer than expected to bring your car to a complete stop.
So, it is always recommended to replace the malfunctioned Power Brake Booster as soon as you witness signs of braking difficulty.
Tools Required
- Socket wrench
- Tube nut wrench
- Line wrenches
- Needle Nose Pliers
- Replacement brake booster
- Measuring Tape and a marker
- Carjack
- Jack stand
- Latex gloves
- Safety glasses
- Workshop manual
Read Also: What Are Three Different Types of Brake Noises?
Steps to Replace Power Brake Booster
- First, you need to raise your car enough so that you can slip under it. Use a jack to raise your car and place jack stands once your car is high enough that you easily work under it.
- In order to access the brake booster, you need to reach into the cavity of the car and locate the master cylinder.
- The cavity of the car and the master cylinder is located on the driver’s side of the vehicle.
- With the help of a tube nut wrench, turn the nut holding the brake line in place anticlockwise to remove it. Take note of the place from where who have removed the brake lines. Mark those places with a marker or a pen.
- Repeat the same with the other brake line, until the master cylinder is completely free of all the brake lines.
- Using the line wrench remove the master cylinder from the vehicle
- Once the master cylinder is removed from the car, now it is time to remove the brake booster from the brake pedal.
- Using the needle nose pliers take off the pin that is holding the brake booster in place.
- You can also take the assistance of socket wrench to remove the bolts that secure the brake booster to the engine and pull it out of the car cavity.
- Once the brake booster is removed, first inspect it to make sure that this is the part that has caused the problem in the first place and you are removing the damaged part.
- Once inspected, replace the faulty brake booster with the new one and screw into place with the help of a nut wrench.
- Now taking the socket wrench secure the brake booster to the engine with the bolts you have removed previously.
- Replace the pin in the diaphragm of the booster that holds it to the brake pedal.
- Now, it is time to inspect the master cylinder, making sure that the cylinder is in good condition with no signs of damage and put it back into its original place.
- If there is any damage to the master cylinder then you need to replace it as well.
- Just reserve the steps you have carried out to remove it from the engine. Reattach the master cylinder to its housing by tightening the bolts that secure the cylinder in place using the socket wrench.
- Reconnect the brake lines one by one to the cylinder; clearly following the marks you have placed to remember the spots using the tube nut wrench.
- Once everything is back into place, test the brake to make sure each component has been placed correctly. Once you are 100% sure that the brake booster is correctly placed in the car, remove the jack stands and lower the car to the ground.