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Braking Pressure Surge under 10mph

Discussion in 'Gen 2 Prius Technical Discussion' started by foxrider68, Jun 25, 2013.

  1. foxrider68

    foxrider68 New Member

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    I recently picked up an 05 that now has about 101k miles on it. When coming to a stop if I put my foot on the brake and hold a steady pressure the car increases the braking pressure drastically once its under 10mph and the car jekrs you forward unless you let off of the brake. I know its because its going from using the regen to using 100% disc pressure so what can I do to fix it? We had an 05 previously we bought new but had to sell a few years back with 65k on it and it didn't do this. Thanks!
     
    #1 foxrider68, Jun 25, 2013
  2. Britprius

    Britprius Senior Member

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    Are there any fault codes and are the discs (rotors) very rusty.

    John (Britprius)
     
    #2 Britprius, Jun 25, 2013
  3. xpcman

    xpcman Senior Member

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    The rotors may be rusty. I suggest you find a hill - put the car in neutral and then apply the brakes. If you do this it should help clean the rotors of the rust.
     
    #3 xpcman, Jun 25, 2013
  4. Britprius

    Britprius Senior Member

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    Please put your location in your avatar as the answers you get will be different depending on the type of brakes fitted to the car. This depends on the country you live in.

    John (Britprius)
     
    #4 Britprius, Jun 25, 2013
  5. TonyPSchaefer

    TonyPSchaefer Your Friendly Moderator
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    My '04 (with 115k miles) can be grippy at the 7mpg switch-over point. Like the others said, either roll down a hill in neutral or get up to a decent speed and shift into neutral. Apply the brakes until you come to a stop.

    Let us know if that helps.
     
    #5 TonyPSchaefer, Jun 25, 2013
  6. foxrider68

    foxrider68 New Member

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    No error codes but I live on a hill so I can heat them up good. I'll look at the rotors to see how they look, nothing specifically bad comes to mind but I've only glanced between the spokes thus far.
     
    #6 foxrider68, Jun 25, 2013
  7. Britprius

    Britprius Senior Member

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    Do you live in the US or else ware. If you live in the US you have drum rear brakes if you live in almost any other country you have disc rear brakes.

    John (Britprius)
     
    #7 Britprius, Jun 25, 2013
  8. foxrider68

    foxrider68 New Member

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    I live in the US and have drum brakes, you can feel that the pulse in braking is coming from the front though.
     
    #8 foxrider68, Jun 25, 2013
  9. Agent J

    Agent J Hypoliterian

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    looks like it's time to replace the rotors as they may have uneven surface wear already
     
    #9 Agent J, Jun 25, 2013
  10. foxrider68

    foxrider68 New Member

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    Good thing thats easy and cheap! Didn't drive it today, I will do the test tomorrow.
     
    #10 foxrider68, Jun 26, 2013
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