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Buick brakes repair questions and answers

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  • kelsey
    kelsey - 2002 Buick Regal - Brakes - 4/18/2013
    How to fix abs module
    Abs and trac on light is on
     
    0 answer
  • AutoMD User
     
    • HouseCallAuto
      4/8/2013 HouseCallAuto
      After collapsing the pistons with a c-clamp and installing new pads and re-installing the calipers, and all of this is done WITHOUT opening up the hydraulic system, the first one or two applications of the pedal should go to the floor and then the pedal should become normal. If the pedal was normal before the brake job I am not sure I could guess what has happened here except that what I have seen happen in a rare occurrence is that after the new brakes are installed and you are all done and you step down on the pedal a few times (to pump up the pedal of course), I have personally formed a habit to avoid what happened to me once on a clients car, and this might be YOUR cause as well. When the brake pedal is normal and the pedal travel does not go beyond say two inches, it is a little risky to then allow the pedal to go the floor even once or twice because the piston and seals inside the master cylinder bore come into contact with the dirty / pitted / unsmooth portion of the master cylinder bore and this can cause a seal failure. The way to avoid this (too late now though) is to step down many short partial brake applications (don't exceed normal pedal travel) instead of two full to the floor pedal applications. In short, of you bled out the air and the pads are installed and everything looks as it should, then the master cylinder failed during the pump up for the reason I detailed.
  • AutoMD User
    AutoMD User - 2002 Buick Rendezvous - Brakes - 4/8/2013
    Why won't my brakes work?
    I had new rotors and brake shoes put on my vehicle now the brake pedal goes down to the floor. there is no fluid leak and no air in the lines. is there a reset button or magic trick?
     
    • Mike
      4/8/2013 Mike
      How do you know there is no air in the lines? If you replaced front pads and rotors only, the pedal should not change.
      Mike
      4/8/2013 AutoMD User
      we bled the brakes, no air came out.
      Mike
      4/8/2013 Mike
      If there is no leak or air, the master cylinder is faulty. Did you open the lines while replacing the pads and rotors? Did you have a firm pedal before?
  • jr_mitchell1964
    jr_mitchell1964 - 2006 Buick Rainier - Brakes - 3/24/2013
    Why won't brake fluid reach my rear brakes
    I changed the left rear brake caliper due to uneven pad wear, when i started to bleed the system i could not any fluid to the rear brakes just a drip or two. the brakes were working fine before this.
     
    0 answer
  • jr_mitchell1964
    jr_mitchell1964 - 2006 Buick Rainier - Brakes - 3/24/2013
    Why won't brake fluid reach my back brakes
    I changed the left rear brake caliper due to uneven wear of the pads once i started to bleed the system i could not get fluid to the rear brakes just a drip. the front breaks had plenty of pressure when i tried them
     
    0 answer
  • mmccleery2006
    mmccleery2006 - 1999 Buick Park Avenue - Brakes - 3/23/2013
    What replacement abs modules can i use on my vehicle.
    The one that was on there was to large and kept blowing brand new brake lines. my mechanic said that it was too large and looked like it came from a van or larger vehicle. I was wondering cause i was told most gm parts are the same for all vehicles what abs modules ...
     
    • Jimm
      3/23/2013 Jimm
      Typically, the ABS control module will be specific to the vehicle - based on the design, weight, options and vehicle charateristics.
      Here are several possible on-line auto parts sources; www.autopartswarehouse.com, www.1aauto.com, www.rockauto.com - to check the various part numbers and applications. For example, they (RockAuto) list the ABS brake module from around $135.00 for your vehicle - depending on whether there is the traction control option.
  • mmccleery2006
    mmccleery2006 - 1999 Buick Park Avenue - Brakes - 3/23/2013
    What replacement abs modules can i use in my vehicle?
    I have been having trouble with my abs module and was told that most gm vehicle parts are similar. i was wondering what other modules i could use to replace mine.
     
    • Jimm
      3/23/2013 Jimm
      Typically, the ABS control module will be specific to the vehicle - based on the design, weight, options and vehicle charateristics.
      Here are several possible on-line auto parts sources; www.autopartswarehouse.com, www.1aauto.com, www.rockauto.com - to check the various part numbers and applications. For example, they (RockAuto) list the ABS brake module from around $135.00 for your vehicle - depending on whether there is the traction control option.
  • McCartneyChuck
    McCartneyChuck - 2003 Buick LeSabre - Brakes - 3/22/2013
    How do I reset the ABS, Traction control, and "brake" light?
    I turned the car off, and restarted it. I unplugged the battery, I took all 4 wheels off and checked the wires going to the ABS sensor, and all are ok???
     
    • zak-pak
      3/22/2013 zak-pak
      First of all is the ABS light amber or red? If it's red driving could be dangerous as there is a serious fault. If it's amber you should be OK to drive you just won't have any ABS (but I don't guarantee that statement).The ABS light requires a special tool to reset it not unlike an OBDII code reader. I had the same problem on my 99 Lesabre a few years ago and it turned out to be one of the wheel sensors (located in the Hub assy). The wiring can look OK but the back of the Hub (Grease retainer) can rust out and cause water and dirt to get inside and cause the sensor to fail or the sensor can just give out. If your handy you could get a shop to diagnose it for you and then fix it ourself, or you can pick up a hub gain access to one hub at a time and plug the new one in and turn your car on to see which one is faulty then replace that one. Trouble is that the hubs are not the same for front and rear so if you get a front one and it turns out to be a rear then you have to take it back and exchange it for a rear (sensors are the same) (I was lucky, I got a front one and it turned out to be the right one). My traction light was only intermittent when this was happening and I only would have the ABS light and traction light, but again mine is a 99 Lesabre. The ABS scanner can be bought at just about any auto parts store. Price the scanner and a local garage to diagnose the trouble (They'll have the scanner and tell them that's all you want) go with what's cheaper or in your best interest. Hope this helps.
  • Cybage 1
    Cybage 1 - 2010 Buick LaCrosse - Brakes - 3/22/2013
    My engine light is turning off even if engine is working well
    It keeps showing light
     
  • michele.cirone
    michele.cirone - 1989 Buick Century - Brakes - 3/5/2013
    Why wont the break pads fit back onto the rotor
    went to parts store twice and the break pads will not fit onto the rotor, could the rotor or the caliper be warped
     
    • CVO
      3/5/2013 CVO
      Siphon 2 / 3 of the brake fluid out of the master cylinder reservoir.

      Release the parking brake.
      Loosen the lug nuts, then raise and safely support the vehicle.
      Remove the tire and wheel assembly.
      Install two wheel nuts to secure the rotor in place.
      Using a large C-clamp, position the clamp on the caliper housing and against the back of the outboard pad and lining. Tighten the clamp slowly to press the piston into the caliper bore.
      Remove the bolt attaching the hose fitting, only if the caliper is to be removed for overhaul. If only the pads are to be replaced, there is no need to disconnect the hose fitting.
      Plug the opening in the caliper and the pipe to prevent fluid from seeping out and contamination.
      Remove the Allen head caliper mounting bolts. Inspect them for corrosion and replace them if necessary.
      To install:
      Coat the bushings with silicone or grease.
      Install the caliper and brake pads over the rotor, in the mounting bracket.
      Install the mounting bolt and sleeve assembly, then tighten the mounting bolt to 28 ft. lbs. (38 Nm) for 1982-84 models and 38 ft. lbs. (51 Nm) for 1985-96 models.
      Measure the clearance between the caliper and the bracket stops. If needed, remove the caliper and file down the ends of the bracket stops to provide clearance. The caliper may appear to be touching the lower abutment and still not be interfering. The caliper should slide freely on the mounting bolt and sleeve assemblies.
      Install the brake hose to the caliper. The brake hose fitting should be tightened to 33 ft. lbs. (45 Nm). Always use new fasteners.
      Install the wheel and tire, hand-tighten the lug nuts. Lower the vehicle, then tighten the lug nuts to 100 ft. lbs. (136 Nm).
      Top off the brake fluid.
  • bigtats_69
    bigtats_69 - 1997 Buick Skylark - Brakes - 2/27/2013
    Why do my rear brakes lock up
     
    • edwardeverett4u
      2/27/2013 edwardeverett4u
      on my 1997 ford Taurus all 4 of my brakes locked up every time I braked.it would release as I drive and kept getting worse and worse. then all 4 brakes locked up and car wouldn't move. it turned out my master cylinder was bad and building up too much pressure. I had changed it but I also had to change all 4 rotors and all 4 brake pads. so hurry up and fix it because the longer you drive the more damage you will cause.
  • bigtats_69
    bigtats_69 - 1997 Buick Skylark - Brakes - 2/27/2013
    My back breaks lock up
     
    0 answer
  • marie
    marie - 1993 Buick LeSabre - Brakes - 2/25/2013
    My Brake fluid is Leaking
    My brake fluid reserve bottle is always empty.I will put brake fluid in it,and wait awhile then go back out to check it,and the fluid has leaked somewhere and is all over my driveway.. Why? I see no holes or cracks in the reserve bottle..Now when i use my brakes ...
     
    • HouseCallAuto
      2/25/2013 HouseCallAuto
      The leak will not be the reservoir, it will be a wheel cylinder or a rusted brake line that has a pin hole. Someone has to check all the brae lines and brake components. if the brake fluid is all pver the driveway then it will not be difficult to determine the cause if an experienced mechanic looks at it. For you yes it will be difficult or impossible.
      HouseCallAuto
      2/26/2013 marie
      Thank-You So Much for your Help... :)
  • mikeqme
    mikeqme - 2006 Buick Terraza - Brakes - 2/8/2013
    Where is the yaw rate sensor located? How easy is it to change?
     
    • CVO
      2/8/2013 CVO
      Powertrain Control Module (PCM)
      Throttle Position (TP) sensor
      Mass Air Flow (MAF) sensor Intake Air Temperature (IAT) sensor
      Idle Air Control (IAC) valve
      Engine Coolant Temperature (ECT) sensor
      Heated Oxygen Sensor (HO2S)
      Camshaft Position (CMP) sensor
      Knock Sensor (KS)
      Vehicle Speed Sensor (VSS)
      Crankshaft Position (CKP) sensor

      Which sensor do you need to know ? Need more information in order to answer.
  • dvbouhi
    dvbouhi - 2000 Buick Century - Brakes - 1/13/2013
    I hear a knock like noise when braking.
    When I brake my vehicle it seems to brake normally except that right before coming to a complete stop my car feels like it came to a stop I hear the knock/ clunk noise, it feels like it jumps forward a small distance (though it doesn't look like the car in front of ...
     
    • CVO
      1/13/2013 CVO
      Safely raise and support the vehicle. Remove the wheel and do an inspection. It could be one of the bolt ( there are 2 bolts ) might be not tighten to the proper torque.
      OR stop by a known good brake shop for a free inspection.
      CVO
      1/13/2013 CVO
      Check the brake caliper, there are 2 bolts.