2000 model Mazda 323 Braking problem

Tiny
OPM8662
  • MEMBER
  • 2000 MAZDA 323
  • 4 CYL
  • FWD
  • MANUAL
  • 27,000 MILES
Hi, my mazda 323 sting 2000 model hatchbatch has a braking problem.

The front brakes disks and pads were replaced as well as the back shoes.

The car was fine for +-6 months, now when I brake it takes a long time to come to a stop. It's like you are pressing but the car still moves and stops slowly.

Please advise urgently on what I can do to fix this problem as its getting dangerous as I have to brake way in advance to stop.
thank you
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Tuesday, May 3rd, 2011 AT 5:39 AM

2 Replies

Tiny
CARADIODOC
  • EXPERT
If the pedal is still nice and firm, the pads might be glazed. You can sand the linings but the rotors are usually glazed too. The fastest way to solve that is by having the rotors machined again or by sanding them aggressively with course sandpaper. The roughness will wear off the glazing on the pads.

If the pedal is simply hard to push, you might have a booster problem. With the engine off, stroke the pedal at least three or four times to exhaust any stored vacuum. Next, hold the brake pedal down with normal force, then start the engine. As soon as the engine starts, the pedal should sink another couple of inches very easily. If it does not, check the large vacuum hose that goes from the engine to the booster for kinks or cracks. If the pedal does react properly, release it, stop the engine, wait about five to ten seconds, then press the pedal to see how easily it goes down. You should get at least two power-assisted presses of the pedal before the vacuum is gone. If the pedal pushes hard right after the engine is stopped, suspect a defective check valve inline with the vacuum hose going to the booster.
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Tuesday, May 3rd, 2011 AT 6:41 AM
Tiny
OPM8662
  • MEMBER
Hi Caradiodoc,
Many thanks for your response to my question on the brakes.

Yes, the brake pedal is still nice and firm when braking.

I just cannot understand why after a few months the brakes suddenly started becoming bad when stopping. It's like you are pressing but it's not catching onto the disk properly.

I will try your solution this weekend on sanding the pads and rotor.
Regards
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Wednesday, May 4th, 2011 AT 4:39 AM

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