Question about 2000 Dodge Grand Caravan

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When I step on the brake pedal it feels very hard and it doesn't brake much, if I step inmediately again, almost like a "pump", then it goes the full travel and brakes better but does not block the tires. I do not have ABS.

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  • helute May 31, 2011

    I thought that this system was to help people to do it your self, the answer of have it checked by a mechanic is not acceptable. If you cannot help me with direction in how to check if the Master cylinder is actually not working, or maybe the check valve is not working or something else, please say so.
    Thanks.

  • helute May 31, 2011

    I tried what you suggested and after depressing the pedal several times and keep maintaining pressure on the pedal, start the car and pedal went further down with no more effort.
    A friend suggested that it might be the check valve, do you know where it is located and how to test it? Do you have any other suggestions?
    Thanks, Herbert.

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  • Master
  • 3,530 Answers

Welcome to Fixya

Sounds like you have a bad power booster. A power booster helps assist pushing the master cylinder piston when you apply the brakes. A bad power booster will give a very hard pedal, it will feel like you need two feet to stop the car. Try to test the booster. Shut off the engine. Depress the brake pedal a few times to evacuate the booster Apply a steady pressure to the pedal and start the engine. The pedal should fall slightly.

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Posted on May 31, 2011

  • Jose Cada
    Jose Cada May 31, 2011

    Check valve is usually located in th brake cylinder and usually it is inside the brake master. see pic below: check valve is number 3




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  • Master
  • 731 Answers

This sounds like a master cylinder problem. Have the brake system checked by a mechanic

Posted on May 20, 2011

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1 Answer

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you have someone helping you right? cuz you cant do it yourself, and the brakes need to be pumped only enough to get a solid midway stop of pedal travel, and with the brake still depressed by your assistant, you open the bleeder a bit until the pedal goes to the floor, you tighten bleeder, they then release brake pedal and pump it up again, rinse, repeat, until there is no spongy feel in brake pedal

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My brakes feel like they arent going to stop.


This is most dangerous for you. I think that your power brake boost has failed, possibly due to a split vacuum hose. You can test this...
With the engine off, pump the brake pedal hard a few times. Then press down hard on the pedal and start the engine. You should feel the pedal sink perceptibly under your foot.
If this seems OK then your brake pads may be down to the metal on one or more wheels even though you here no noise. Remove the front wheels and have a look, as on p22 here (a later model).

http://www.turboninjas.com/camry/br.pdf

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Brake light switch or Selector switch on the gearbox


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Brake problem.


bleed the brakes again starting form the longest line back to the shortest
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I have abs system my brakes are so hard like when the car is turn off and looks that only have brakes no the front


Check your vacuum brake booster; with the engine off, press firmly on the brake pedal, then start the engine. If the pedal sinks noticeably, the booster is OK. If it doesn't, the drum-like device between the fire wall and the master brake cylinder is bad and should be replaced.
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My brake peddel is spongee-soft, and goes to the floor if i prees hard?


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pulling all wheels & inspecting brakes,cylinders, calipers,& lines for leaks.
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