Question about 1989 Jeep Cherokee

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Brake booster do you have the step by step instruction to do the job right?

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If there is an autozone by you then ask them for a diagram and at the same time you can get a price on one but I go to a salvage yard for a great deal of my parts it is alot cheaper and if you have a self service salvage yard you take your tools and take it off but stop by autozone because the instructions will assist you installing the other one

Posted on Jan 18, 2009


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How to replace brake booster on 2005 Pontiac aztek

Step 1 - Locate the Brake Booster The brake booster is located adjacent to the master cylinder. There will be 4 mounting screws protruding through the booster. The booster is also attached to the brake pedal in the interior of the car. This is where you will start work in replacing the brake booster.
Step 2 - Remove the Brake Booster Start by locating the booster rod that goes through the firewall and is attached to the brake pedal on the interior of the car. Typically, there is a cotter pin that secures the rod to the pedal, but there may also be nuts. When removing any fasteners in the course of this job, make sure to retain the nuts, cotter pins, and various other fasteners as the new brake booster will not come with replacement fasteners.
Remove the fasteners, whether it is a cotter pin or nuts. Slide the rod off the brake pedal. Disconnect the vacuum brake line that connects to the booster. In the engine compartment, there are four bolts securing the booster to the master cylinder and firewall. Loosen and remove these nuts. Remove the nuts (there are usually 2 in addition to the 4 that have already been removed) that secure the brake booster to the master cylinder. Wiggle the brake booster away from the master cylinder. There is a seal between the two. You will need to keep this as the new part does not generally come with another one. Remove the brake booster.
Step 3 - Install the New Brake Booster Set the new brake booster on the four mounting screws. Tighten the nuts on the bolts to the master cylinder. Insert the push rod through the firewall. Start these by hand so that the threads are not ruined. Reattach the vacuum hose, then the nuts to the 4 mounting screws. Reattach the push rod to the brake pedal by whatever means it was originally secured with, whether by cotter pin or by bolts.
Step 4 - Bleed the Brakes You will need to bleed the brakes after replacing the brake booster

Jul 11, 2016 | 2005 Pontiac Aztek

2 Answers

How do I replace the power brake booster? I am looking for a link to a service/repair manual, even a Chilton or Haynes book would do! Local auto parts stores didnt stock them.

25960073-j3ypv2wzqhzzlgvrg3bd11qz-1-1.jpg This is pretty much what the booster looks like. The brake master cylinder is connected to the two studs on the left. You only need to remove the studs and pull the master cylinder aside, being careful not to damage the brake lines. There will be a vacuum line attached to the engine compartment side of the booster as well. This must be disconnected. The rod extending from the bellows on the right is inside the vehicle and it connects to the brake pedal with a clip of sorts. Remove the clip and disengage the rod. Then, remove the two nuts holding the booster to the firewall (on the studs facing to the right, and pull the booster from the engine side. Installation is done by reversing the process.

Nov 14, 2015 | 2011 Mazda CX-9

1 Answer

Step by step instructions for replacing brake booster on a 1999 Toyota Camry

its my pleasure to answer your question how to replace the brake booster :
1 With the engine off, step on the brake pedal several times to relieve the brake booster of vacuum.
2 Press the brake pedal down and start the engine. Verify that the brake pedal sinks slightly. Turn off engine.
3 Remove the vacuum hose from the brake booster.
4 Remove the brake lines from the master cylinder. Remove the master cylinder from the brake booster. Plug the fittings to prevent brake fluid seepage.
5 Disconnect the brake pedal from the push rod.
6 Have an assistant hold the brake booster from inside the engine compartment. Remove the nuts that hold the brake booster to the firewall. These nuts are usually located under the dash on the interior of the firewall.
7 Remove the brake booster.
8 Install the new brake booster to the firewall. Tighten the mounting nuts.
9 Connect the push rod to the brake pedal.
10 Connect the vacuum hose to the brake booster.
11 Attach the master cylinder to the new brake booster and reconnect the brake lines.
.12 Bleed the brakes at the master cylinder.

Oct 04, 2013 | Cars & Trucks

1 Answer

Step by step instructions for changing my brake booster

Remove only the two nuts that secure the master-cyl. to the booster NOT THE FLUID LINES and tie the master cylinder carefully out of the way.Then remove the four nuts under the dash that secure the booster to the fire wall.Not forgetting the booster push-rod connection to the brake pedal.Remove the clip and the pin and now the booster should be free to come out.There are torque specs. for tightening the nuts when replacing if you have a torque wrench.Refer to Haynes manual from auto shop
Also I think the brake booster push-rod is adjusted at the factory but if it isn't it may need adjusting otherwise you could find youre getting overheating brakes after the installation.

Apr 09, 2013 | Buick LeSabre Cars & Trucks

1 Answer

I need detailed instructions on how to replace a brake booster

remove first all the metal tube.. the check valve and hose connected to booster body.. this is on the engine area..catch all the fluid that goes out from the metal , in the driver side the brake pedal ..there is a rod locked to the arm of the pedal brake.. this rod is connected to the booster. once the rod is unlocked from the pedal arm . remove the nuts on the wall body where the booster is leaning on the wall body.. these nuts are partner of the bolts inside the booster.once these nuts are out the booster is ready to get out. To install do the opposite step by step.. and bleed the metal tube till the brake is functioning good if not go under the bleeder screws on each tire and do the bleeding procedure with someone pressing the brake pedal. hope this will do .

Aug 19, 2011 | Mazda Tribute Cars & Trucks

3 Answers

Power brakes aren't working. hissing noise when braake is stepped on.

Sounds like the vaccum hose is off to the brake booster. Check that its is right behind the brake fluid rev. were you put the fluid in for the brakes. If the line is fine it could also be the booster its self.

Mar 10, 2011 | 1998 Chevrolet Blazer

2 Answers

Dies when you step on brakes then starts right up again and dies when you stp on brakes again.

Do you hear a gas leaking when you step on the brakes? Leak would be in the brake booster in the engine compartment just ahead of the driver. A large leak in the booster can cause the engine to die. If this is not the cause or you would like instructions for replacing the booster, please get back to me.

Nov 20, 2010 | 1993 Chevrolet S-10 Blazer

1 Answer

How do i replace a power brake booster on a 97 ford taurus

  1. Step 1 Mark the brake lines coming into and out of the master cylinder using masking tape and permanent marker.
  2. Step 2 Orient the tube wrench so that it grabs the end of the nut by first sliding it over the brake line.
  3. Step 3 Pull the brake lines out of the master cylinder.
  4. Step 4 Unbolt the two bolts that hold the master cylinder to the brake booster.
  5. Step 5 Slide the master cylinder off the brake booster.
  6. Step 6 Remove the bolts that hold the brake booster to the firewall.
  7. Step 7 Remove the cotter pin from the pin holding the back of the brake pedal to the master cylinder.
  8. Step 8 Slide the brake booster to brake pedal pin out of the mounting bracket.
  9. Step 9 Pull the brake booster off the firewall.
  10. Step 10 Install the new brake booster. Installation is the reverse of removal.

Apr 24, 2010 | 1997 Ford Taurus

1 Answer

Any info on changing a brake booster on a 1996 Sierra and also help trouble shooting a master cy. Thanxlinder

a defective master has just one common symptom, a soft sinking pedal.
Instructions Things You'll Need:
  • Nose pliers
  • Ratchet and socket
  • Ratchet extension
  • Slip joint pliers
  • Wrench
  • New cotter pin
    Removing the Old Brake Booster
  1. Step 1 Park your car in a safe place with enough room to work around the front and driver side of the vehicle.
  2. Step 2 Locate the booster push rod connected to the brake pedal.
  3. Step 3 Remove the cotter pin securing the booster push rod pin to the brake pedal using a pair of nose pliers.
  4. Step 4 Release the push rod pin from the brake pedal and slide the push rod off the brake pedal.
  5. Step 5 Unscrew the four mounting nuts off the brake booster studs using a ratchet, ratchet extension and socket. You should be able to see the four booster studs extending through the firewall, in front of the brake pedal.
  6. Step 6 Disconnect the vacuum hose from the brake booster, working from the engine compartment. Use a pair of slip joint pliers.
  7. Step 7 Remove the two nuts holding the brake master cylinder to the brake booster. Use a wrench or ratchet and socket.
  8. Step 8 Separate the brake master cylinder from the booster just enough to make room for booster removal.
  9. Step 9 Pull the brake booster off the firewall and remove it from the vehicle.
    Installing the New Brake Booster
  10. Step 1 Set the new booster in place by sliding the push rod and four mounting studs through the mounting holes on the firewall.
  11. Step 2 Slide the brake master cylinder flange over the two mounting studs on the brake booster.
  12. Step 3 Start the two brake master cylinder mounting nuts by hand to avoid damage to the threads.
  13. Step 4 Tighten the two brake master cylinder mounting nuts using a wrench or ratchet and socket.
  14. Step 5 Connect the vacuum hose to the brake booster.
  15. Step 6 Screw the four mounting nuts to the brake booster working from inside the vehicle. Start the nuts by hand to avoid damaging the threads.
  16. Step 7 Tighten the four mounting nuts using the ratchet, ratchet extension and socket.
  17. Step 8 Position the brake booster push rod over the brake pedal and slide the push rod pin.
  18. Step 9 Install a new cotter pin to secure the booster push rod to the brake pedal

Nov 20, 2009 | 1996 GMC Sierra

5 Answers

When I step on pedal I get a vacuum leak sound under the dash.Have to push real hard on pedal for brakes to work. I'm not sure where all the air assist parts are. Is there a hose that might have cracked or...

the vacuum operated power brake booster is leaking, replace it, four bolts on the inside of firewall plus two to take the master cylinder loose..

Sep 09, 2009 | 1997 Chevrolet K1500

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