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Pontiac brakes repair questions and answers

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  • Jer
    Jer - 2001 Pontiac Bonneville - Brakes - 9/30/2014
    Emergency brake broke but not on
    202,500 the parking break broke on me when i pushed it in sounded like it snapped. the brake light is on but brakes are not activated. the car can be driven and it brakes fine. what can i do?
     
    0 answer
  • Jer
    Jer - 2001 Pontiac Bonneville - Brakes - 9/30/2014
    Emergency brake broke but not on
    202,500 the parking break broke on me when i pushed it in sounded like it snapped. the brake light is on but brakes are not activated. the car can be driven and it brakes fine. what can i do?
     
    0 answer
  • Karen W.
    Karen W. - 1999 Pontiac Grand Am - Brakes - 9/14/2014
    Brakes do not work after car is started
    we have replaced all lines, master cly.,booster, and proportioning valve. Now only have rear brakes.
     
    • alex
      9/14/2014 alex
      look up how to bleed abs system that should fix you up is your brake light flashing a code could be a problem with the abs controller. but that should make your brake light in the dash flash.
  • AutoMD Member
    AutoMD Member - 1997 Pontiac Trans Sport - Brakes - 8/8/2014
    My flasher lights stay on don't have no signal lights
    flasher lights stay on at all times replaced all the bulbs but still no signal lights
     
  • Charles
     
    • jdl
      8/6/2014 jdl
      If you have never had the brake fluid lines loose, you have a leak, somewhere? Are all you brake pads/shoes ok? Your master cylinder could have a problem? Check for abs codes.

      Don't take any brake lines or fittings loose, until your sure no pressure on the system. Is the abs module integrated with the master cylinder or separate?
  • AutoMD Member
    AutoMD Member - 2006 Pontiac Grand Prix - Brakes - 7/20/2014
    Rust in brake housing
    Mileage $84,000 brakes replaced 3 months ago Is there anything I can use to get rid of the rust that will not impact the brakes themselfs?
     
    • Jimm
      7/20/2014 Jimm
      Need more information - where exactly is the rust or corrosion in question? On which specific brake part or component is the rust noted?
  • AutoMD Member
    AutoMD Member - 1995 Pontiac Grand Prix - Brakes - 7/4/2014
    Need help with 95 Pontiac Grand Prix gtp ABS/brakes problem. Leaking fluid and not full use of brakes.
    I own a 1995 Pontiac Grand Prix GTP with the 3.4L DOHC. Since I have owned the car, I have not had ABS which is not a problem for me. But i recently changed my back brakes and within a few days was leaking brake fluid from under the ABS Hydrolic Unit. The back ...
     
    • Jimm
      7/4/2014 Jimm
      No ABS may be related to severai possibilities; dirty/faulty sensors, wiring or connection issues, ABS control module, ABS relay or fuse. Have the ABS system scanned for any stored fault codes as one first step.
      Jimm
      7/4/2014 AutoMD Member
      Jimm, its not the ABS that Im worried about. I can deal with that, have had none the 3 years I have owned the car. What Im trying to figure out is after I changed my back brakes, why and where exactly did it start leaking fluid from around the ABS and cause my back brakes to not fully function. Im sure the extra pressure from the changing of the back brakes cause something to fail, Im just hoping it was something like a gasket, etc. and not something major like the ABS hydrolic unit itself.
  • AutoMD Member
    AutoMD Member - 2006 Pontiac Grand Prix - Brakes - 6/10/2014
    Brake fluid not reaching brake fluid level sensor in reservoir
    The dash says my brake fluid is low. I check the resevoir and it's full. I replace the sensor and it's dry. Seems as if only half of the resevoir is filling but I don't see an obvious problem why.
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2006 Pontiac Grand Prix - Brakes - 6/10/2014
    Brake fluid not reaching sensor in brake fluid resevoir
    The dash says my brake fluid is low. I check the resevoir and it's full. I replace the sensor and it's dry. Seems as if only half of the resevoir is filling but I don't see an obvious problem why.
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2004 Pontiac Grand Prix - Brakes - 5/20/2014
    When I brake it feels like the brakes are thumping, what is this?
    I just had my brake pads replaced and the problem got worse
     
    • Jimm
      5/20/2014 Jimm
      Several possibilities; faulty front brake caliper hardware / bolts, faulty / warped front brake rotors.

      The parts are readily available from these many on-line sources, www.partsgeek.com, www.rockauto.com, www.discountautoparts.com, www.autopartswarehouse.com, www.jcwhitney.com - to list only a few possibilities. The various front brake rotors are listed in price from around $20.00 each - from RockAuto.
  • AutoMD Member
    AutoMD Member - 2004 Pontiac Grand Prix - Brakes - 3/16/2014
    How to find a brake fluid leak? Is there something a mechanic can do to make it easier to find it.
    I have had to add about 4 ounces of brake fluid 3 weeks after filling resorvoir to maximum. I looked around reservoir and placed newspaper by wheels and could not find. Any suggestions on how to find or where else to look for the leak?
     
    • Affordable Auto Service
      Check for fluid under master cylinder where it meets vacuum booster, also check under dash where brake pedal comes through firewall. If you have drum brakes remove wheels and brake drums and check for leakage at wheel cylinders. finally a visual check under vehicle along all brake lines.
  • AutoMD Member
    AutoMD Member - 2004 Pontiac Grand Prix - Brakes - 3/15/2014
    How to find a brake fluid leak. Do mechanics how something to help find it
    I've looked for leak around resorvoir, and master cylinder and place newspapers at backside of tires; and cannot find leak (i've added about 4 ounces 3 weeks after topping off resorvoir. Any advice on how to find it and where else to look. Does a mechanic have a ...
     
    • HouseCallAuto
      3/15/2014 HouseCallAuto
      If there are no external leaks at the lines then you have to remove all tires and look at calipers and / or drum brake cylinders and also consider the rear of the master leaking into the brake booster.
      HouseCallAuto
      3/15/2014 HouseCallAuto
      By the way, an experienced mechanic would figure it out.
  • AutoMD Member
    AutoMD Member - 1980 Pontiac Firebird - Brakes - 3/13/2014
    Front driverside brake caliper locked up.--should I replace.
    I can free it up untill the next I apply the brakes.Will not let up by it self.
     
    • HouseCallAuto
      3/13/2014 HouseCallAuto
      It could be a bad brake hose on that side also. In this situation if you just want to know that this problem will be fixed same day no back and forth, just buy a brake hose and caliper for that side and if that solves it you should then do the same to the other side to keep things in balance.
  • jim
    jim - 1999 Pontiac Grand Am - Brakes - 2/22/2014
    How do i tell if its the master cylinder or the power booster thats bad on my 97gmc 1/2ton pickup
    My brake pedal suddenly went down 3/4 of the way to the floor but it stops
     
    • Jimm
      2/22/2014 Jimm
      Easy diagnosis. To determine the power vacuum booster condition / integrity - pull (remove) the booster vacuum line (hose) connection from the engine - or unplug the vacuum line at the end opposite the booster check valve connection.

      With the engine off - apply a vacuum to the booster through the hoas and check valve - using a handheld vacuum pump (MityVac or equivalent). The vacuum applied should hold - if it does not hold (reduction over several minutes), then the power booster diaphragm is faulty / ruptured.
      If the vacuum holds - no loss in vacuum over several minutes, then suspect the master cylinder.

      The parts are readily available from these many on-line sources, www.partsgeek.com, www.rockauto.com, www.discountautoparts.com, www.autopartswarehouse.com, www.jcwhitney.com - to list only a few possibilities.
      In fact, they (RockAuto) list the power brake booster from around $64.70, and the brake master cylinder from around $54.00 for your vehicle.
  • AutoMD Member
    AutoMD Member - 2000 Pontiac Grand Prix - Brakes - 1/6/2014
    Abs light comes on at random
    light comes on , shut off and restart car and it turns off . no check engine light . happens while driving . once in a while .
     
    • HouseCallAuto
      1/6/2014 HouseCallAuto
      There is a fault code stored in the abs module that will tell important diagnostic info but requires a code reader capable of reading the codes. A tool like an Actron CP9580 or similar is needed. That tool is about $250 or you have to pay someone to read the codes for you. The auto stores cannot read abs codes for free like they do the engine codes. They don't even read the abs codes for a price. So, in short there is a malfunction in the abs system, maybe a front wheel speed sensor but info is needed to know. Not a safety issue though.