Question about 1998 GMC Yukon

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I have a 1998 gmc yukon and i need to replace the brake booster but i dont know how what do i do?

My 1998 gmc Yukon is having issues with the brake booster I think there is air in it im not really sure what I have to do to replace it step by step without causing any other problems

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Can you provide me with additional information? Such as, does the brake pedal go to the floor when applying the brakes, are the brakes spongy, non responsive? Is there anything leading up to this issue, such as a minor accident?

Posted on Apr 18, 2014

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Posted on Jan 02, 2017

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  • 124 Answers

SOURCE: service brake booster display

Your brake booster is the heart of your power brakes. It runs off a vacuum from the intake to booster. Your brakes will still work as long as they have fluid. They'll just get stiff. It probably means you need a new one

Posted on Mar 31, 2009

bschilz
  • 2049 Answers

SOURCE: 2007 GMC YUKON denali, rear brakes have an air

Here's a link to a thorough article on the subject which should help you...

http://www.aa1car.com/library/abs_bleeding.htm

Posted on Oct 13, 2009

gordanddar
  • 477 Answers

SOURCE: will a repair manual explain to me how to fix a brake booster?

Yes , for sure. A haynes manual is a must have for anyone who wants to do work on their own car. It will save you hours of frustration and unnecessary work. WELL worth the cost.
When you say the booster is going out , are you sure ?
They work of a vacumme hose from the engine , if that hose is leaking , or the little valve where it goes into the booster is no good , than you might think the booster is bad when it is good.
In general terms either the booster is good , or it is bad and you have to stand on the pedal to get any brakes.
If you post more info about what your brakes are doing , or not doing , someone might give you a different solution / diagnosis.

Posted on Jun 02, 2010

  • 12650 Answers

SOURCE: I have a 1998 GMC yukon and the problem is that

its advisable to disable the air bag system and disconnect neg term at battery-remove vacuum line from booster pull straight out of grommet remove master and move aside without removing or bending lines -remove left side under-dash panel and the heater duct under steering column remove the pushrod retaining clip and slid the brake light switch and pushrod off the pin -remove the 4 nuts slide booster and gasket out from firewall

Posted on Jul 26, 2010

d_hubbs
  • 270 Answers

SOURCE: i replaced brake light switch on 1998 gmc yukon,if

Hi just sounds like the mounting or brake light switch is not hooked or adjusted right.its a very easy Fix.Get a Helper to watch the rear lights while your adjusting.If does'nt work after adjusting or reconnecting it .Go get another Switch,Something sounds Damaged.

Thanks d_hubbs

Posted on Oct 04, 2010

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Removal and installation brake booster


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Jun 03, 2012 | 1998 GMC Yukon

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How to replace brake booster on 96 gmc 1500


Remove brake master ! Two bolts holding it to the booster disconnect vac hose ! Now go in the truck follow the brake pedal up remove the pin the connects the pedal to the booster ! There will be 4 bolts holding the booster in place! Once bolts are out push booster out gently!

Oct 05, 2011 | 1996 GMC Yukon

1 Answer

My rear brakes on my 1996 GMC Yukon lock up fairly easy (pads are good) when the brakes are applied. It's like they get most of the stopping power vs the front brakes (new pads/rotors). The booster is...


W hen the rear work fasterr than the front or any wheel grabs faster then you need to check the brake hoses. In your case the front brake hoses could be starting to clog up. they deteriorate from the inside and collapse

Nov 23, 2010 | 1996 GMC Yukon

1 Answer

I replaced brake light switch on 1998 gmc yukon,if i barely tap brakes the brakes light up,if i push all the way to floor they dont light up,i need help.


Hi just sounds like the mounting or brake light switch is not hooked or adjusted right.its a very easy Fix.Get a Helper to watch the rear lights while your adjusting.If does'nt work after adjusting or reconnecting it .Go get another Switch,Something sounds Damaged.

Thanks d_hubbs

Oct 04, 2010 | 1998 GMC Yukon

2 Answers

I have a 1998 GMC yukon and the problem is that


The Master Booster is located in the Engine compartment. You shouldn't have to touch anything under your dash at all. The master comes unbolted, you slide it out slightly to disconnect and hardware that may be connected and then remove it. GMC sometimes add connectors to the linking parts between the brake pedal and Booster but they can be disconnected and should be disconnected from the engine side of the firewall. I recommend you get the Haynes repair manual on your vehicle before continuing that repair.

Jul 26, 2010 | 1998 GMC Yukon

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V8 engine? That would be drivers side front. Remember that TDC is number one piston up (On the compression stroke, not exhaust stroke), timing marks at zero.

Jun 05, 2010 | 1998 GMC Yukon

1 Answer

Will a repair manual explain to me how to fix a brake booster?


Yes , for sure. A haynes manual is a must have for anyone who wants to do work on their own car. It will save you hours of frustration and unnecessary work. WELL worth the cost.
When you say the booster is going out , are you sure ?
They work of a vacumme hose from the engine , if that hose is leaking , or the little valve where it goes into the booster is no good , than you might think the booster is bad when it is good.
In general terms either the booster is good , or it is bad and you have to stand on the pedal to get any brakes.
If you post more info about what your brakes are doing , or not doing , someone might give you a different solution / diagnosis.

Jun 02, 2010 | 1997 GMC Yukon

1 Answer

Service brake booster display


Your brake booster is the heart of your power brakes. It runs off a vacuum from the intake to booster. Your brakes will still work as long as they have fluid. They'll just get stiff. It probably means you need a new one

Mar 31, 2009 | 2004 GMC Yukon

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