Question about 1999 GMC Sonoma

1 Answer

Removing power brake booster!

Hi I am trying to remove the top right bolt on firewall on my brake booster alldata tells me to remove steering columm bracket but not sure how I took many bolts out but still not moving and suggestions? I have the other 3 bolts out I just dont have the clearance to get the last bolt out. Only other option I have is to remove whole dash!! I have a 99 gmc sonoma 2.2l 2wd.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • GMC Master
  • 22,156 Answers

Can you not get to it with a long 1/4 drive socket socket?? i have never done one so honestly wouldnt know but with the right tools a lot of things can be accessed

Posted on Apr 25, 2010

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

2 Answers

How do I get the brake booster out of my 1999 oldsmobile silhoette?

Hi Carol,here's a Autozone repair guide on replacing your brake booster. Repair Guides Brake Operating System Power Brake Booster AutoZone com Here's a link to a new one. Brake Power Booster Hydraulic Brake Fluid DOT 3.OE Part Number/Spec: GM P/N 12377967 Spec 9986121.

Sep 07, 2016 | 1999 Oldsmobile Silhouette

2 Answers

Replace power brake booster

unbolt the master cylinder from the booster and remove from it carefully so you don`t damage the brake lines. undo the vacume hose from booster. disconnect the brake pedal from the booster rod. unbolt the 4 mounting bolts for the booster. these maybe located under the dash where they come through the firewall, if not on the outside of the firewall. remove the booster.

Aug 23, 2015 | 1999 Ford Contour

1 Answer

In 96 cougar is bad,,,how do i replace it

    • Mark the location of all of the brake lines running into the brake master cylinder using masking tape and permanent marker.
    • 2Slide the tube nut wrench over the brake line running to the brake master cylinder. Orient the wrench so that it fits over the end of the tube nut.
    • 3
    • Turn the nut counterclockwise to remove it from the master cylinder.
    • 4Pull the brake lines out of the master cylinder.
    • 5Remove the bolts holding the master cylinder to the brake booster.
    • 6Remove the mounting bolts on the brake booster that secure it to the firewall.
    • 7Remove the cotter pin running through the head of the pin that connects the brake booster diaphragm to the back of the brake pedal with a pair of pliers.
    • 8Remove the brake booster diaphragm pin.
    • 9Remove the bolts inside the driver foot well that secure the brake booster to the firewall.
    • 10Install a new power brake booster. Installation is the reverse of removal

Oct 19, 2012 | 1996 Mercury Cougar XR7

1 Answer

Brake Booster Removal - 1999 Jeep Cherokee Classic 4.0L

use a swivel socket or look above the firewall on the inside and look for a bolt or ujoint that will undo so u can slide it up and out of the way

Sep 08, 2012 | 1999 Jeep Cherokee

1 Answer

How to remove the power brake booster on a 1990 gmc 1500 sierra

Remove the brake master cylinder from the front of the booster, then unbolt the unit from the firewall. there should be two nuts in the engine compartment and two bolts under the dash. The easiest way to the pedal rod is to remove the dash panel. then it pretty easy to get to the rod and the bolts. disconnect the vacuum line from the booster and it comes of the firewall. Replace it in the opposite order.

Oct 19, 2010 | GMC Sierra 1500 Cars & Trucks

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

How do you get a power booster off a 1999 town and country van?

Your power brake booster is bolted to the rear engine compartment, or firewall, from the inside , so you need to disconnect the rod from the brake pedal, and locate and remove the bolts that hold it. You also have to unbolt your brake master cylinder too.

Nov 16, 2009 | 1999 Chrysler Town & Country

1 Answer

Power steering hose, leaking. How to replace power steering hose.

You will have a leak from the pump, pressure hoses or the rack. You will have to get the system washed down and inspected for the leak, most common problem is the steering rack leaking, this will leak oil onto the exhaust and cause your smoking problem, start her.

Remove the power steering pump pulley.
Place a drain pan under the vehicle. Important: Cap or plug the ends of the power steering hoses to prevent fluid loss.
Disconnect the power brake booster inlet hose from the power brake booster.


Disconnect the power steering cooler hose from the power steering pump.


Disconnect the power steering pump remote reservoir hose from the power steering pump.


Raise and support the vehicle. Refer to Vehicle Lifting.
Remove the power steering pump rear mounting bracket nut.
Lower the vehicle.
Loosen the accessory bracket bolts and nut. Pull the accessory bracket forward.
Remove the power steering pump mounting bolts.
Remove the power steering pump and the power brake booster inlet hose from the vehicle.
Remove the power brake booster inlet hose from the power steering pump.

Jul 23, 2009 | 1994 Toyota Corolla

1 Answer

Power Brake Booster has vacuum leak, How do I get the old one off to put the new one on myself? The shop says they will tell me for about $725.00, I laughed and said maybe later!

Remove the master cylinder. The booster usually bolts on from under the dash. Remove the four bolts and it will come off the firewall. Reverse to replace.

Jun 09, 2009 | 2002 Buick Century

Not finding what you are looking for?
1999 GMC Sonoma Logo

Related Topics:

246 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts


Level 3 Expert

75817 Answers


Level 3 Expert

1311 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Are you a GMC Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides