Question about 1998 GMC Sierra

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The brakes work on my sierra but you have to apply them a good distance before you want to stop. (i guess you could say they are really really soft) we have replaced the brakes, pads, the rotors are fine and we have even tried the fuse for the abs with no solution. is there anything we could do?

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Your vac booster might be leaking or you have some air in your brake lines, bleed lines and check vac booster see if when you pull vac line out of booster you hear that it's holding air pressure

Posted on Feb 03, 2010

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Related Questions:

3 Answers

In a car what is the meaning of abs and what is purpose?

automatic braking system. stops skidding.

Mar 28, 2015 | Cars & Trucks

1 Answer

How do l use the ABS function and when does it get used

The ABS function is entirely automatic and comes into action when one wheel looses traction under brakes. It releases the pressure to the brake on that wheel allowing it to turn and then reapplies pressure to the brakes This action will occur many times a minute and all you might feel is a pulsation of the brake pedal as the pressure is released and applied by the abs unit. It is fitted to give you steering ability under brakes as the wheels do not lock up but are allowed to keep turning and so prevents skids allowing you to steer around what you would otherwise hit.. Do not fall for the bull dust that you stop quicker( shorter distance) as this only applies to dry hard surface. ON loose surface ,ice,grass etc you will in effect use more distance to stop in a panic situation.

Oct 30, 2014 | Cars & Trucks

1 Answer

Soft brake pedal on 1990 GMC Sierra. Replaced master cylinder, rear shoes are almost new, front pads are good.

if master replaced sounds like air still in lines rebleed the brake lines start with passenger rear than driver rear -pass front -than driver front last..before bleeding check rear brake shoes are adjusted correctly

Aug 10, 2011 | 1990 GMC Sierra

1 Answer

We recently replaced the front brake pads and turned the roters on our 2004 PT Cruiser. However, when applying the brakes on a hard quick stop, it makes a god-awful griding noise. Doesn't do it with a...

Brake repair is pretty simple as long as you know what you are doing. That's the reason why mechanics who do know have a brake adjusters license as extra security for the consumer. If someone repaired your brake system and unlicensed would be unhelpful when you get into an accident and file a claim from insurance. Enough of that, I think you get the picture.

  • Ensure that the piston in the caliper was pressed in all the way, it's just better whe a piston is bottomed out.
  • Clean the caliper slide rails (part of pad resting on the caliper) with emery cloth, free from rust and debris.
  • Apply a thin film of white lithium grease on the rails. This will help the pads to slide more easily and keep it from seizing. Do not over do it and avoid contaminating any area of contact when brakes are applied.
  • With a die grinder and a SOS pad scuffing wheel (you can use any tool similar as long as you achieve our goal), scuff the disk brake rotor in one circular direction. If it was turned professionally you'll see directional scuff markings around the rotor and no need to do this step.
  • The brake pads should be ground off a max of 3 deg on it's top and bottom edges. This will prevent brake chatter in it's initial operation.
  • With the brake pad material facing down, spray the backing plate of the pad with brake quiet (blue). This serves as a vibration damper keeping the squeeling noise down when brake action is applied.
  • Put the parts together, make sure there's film of white grease to parts that need to slide on each other e.g. caliper guide pins, pad rest, caliper rails.
  • Bleed the brake system starting from the furthest wheel from the brake master cylinder, moving up to the nearest as the last one. This why it's good idea to bottom out the pistons.
  • To set the pads and break-in the contact surfaces of the system, speed up and apply the brakes, stomping on the pedal to a full stop. Brake like it's an emergency stop, make sure when you stomp it, a full revolution of the rotor was accumulated to evenly set the pads in.
This should be worth something, please rate this for my effort. Thank you.

Jun 28, 2010 | 2004 Chrysler PT Cruiser

1 Answer

Brake problems, soft brakes must pump brakes f

More than likely you do have a bad master cylinder. Replace it as soon as possible beause it will progressively get worse.

Jun 02, 2010 | 1994 GMC Sierra

1 Answer

1994 gmc Sierra. Poor, soft, spongey peddle feel

well maybe the lines are not bleed right. did you bleed the master??

May 09, 2010 | 1999 Chevrolet Silverado 1500

1 Answer

Soft brakes , when you step no the brakes it does stop but the pedal is spongy .

check the power brake booster for a vacuum leak.
if good air can be in the brake fluid lines

Feb 28, 2010 | 1997 GMC Sierra

2 Answers

Brake pedal vibrates while braking and doesent stop right away

There's speed sensors at each wheel. You may have got some contamination in front of one of them... sounds like the abs is trying to compensate for un equal speed at each wheel... and something may be blocking a proper read at one of the wheels...

Jul 23, 2009 | 2002 GMC Sierra 1500

3 Answers

1998 GMC 1500 4x4 4.3L ABS brake problems

Or you could just pull the fuse for the abs and not have abs but you won't wreck from pulsating pedal.

Jan 01, 2009 | 1998 GMC Sierra

1 Answer

Brakes are a weak point

if you havent already tried them,try mettallic based pads

Nov 02, 2008 | 2004 GMC Sierra

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