1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  2. Welcome To LandyZone!

    LandyZone is the biggest Land Rover forum on the net. We have plenty of very knowledgable members so if you have any questions about your Land Rover or just want to connect with other Landy owners, you're in the right place.

    Registering is free and easy just click here, we hope to see you on the forums soon!

Disco 2 Brake noise

Discussion in 'Land Rover Discovery' started by Trekex8, Dec 13, 2016.

< Previous Thread | Next Thread >
  1. Trekex8

    Trekex8 Member

    Joined:
    Oct 17, 2016
    Posts:
    17
    Likes Received:
    0
    Location:
    Cumbernauld
    Hi guys,
    Hope someone can help me, I have an intermittent noise/vibration from brake peddle. Sounds and feels like a gear not meshing properly. Not had a chance to look yet, but ideas would be great place to start.
    Thanks in advance.
    G
     
  2. neilly

    neilly Well-Known Member Full Member

    Joined:
    Jan 10, 2011
    Posts:
    20,016
    Likes Received:
    10,443
    Location:
    Oxfordshireness
    Are you sure it is not your ABS????

    Cheers
     
  3. Trekex8

    Trekex8 Member

    Joined:
    Oct 17, 2016
    Posts:
    17
    Likes Received:
    0
    Location:
    Cumbernauld
    Would a light not come on when abs is activated. Roads are dry not slippery.
     
  4. brian47

    brian47 Well-Known Member

    Joined:
    Jan 24, 2013
    Posts:
    8,876
    Likes Received:
    5,375
    Location:
    Bridgend, Mid Glam. Somebody's got to live here.
    Sounds like ABS to me too. There's one place not far from where I live where there's a bit of tarmac filling a trench across the road, and it's just as the road approaches downhill to a roundabout. If I don't take my foot off the brake at that point, the little bump in the road is enough to trigger the ABS, immaterial of the weather.
    What gives you the idea that a light should come on when it activates? If the light on the dashboard associated with the ABS does come on it usually means you have a problem.
     
  5. Trekex8

    Trekex8 Member

    Joined:
    Oct 17, 2016
    Posts:
    17
    Likes Received:
    0
    Location:
    Cumbernauld
    Sorry guys getting my self mixed up, light is for traction control. When abs activities what does it feel like? Sounds and feels like I have just crunched gears but through pedal. Sorry for asking over and over, just very unsettling when it happens.
     
  6. brian47

    brian47 Well-Known Member

    Joined:
    Jan 24, 2013
    Posts:
    8,876
    Likes Received:
    5,375
    Location:
    Bridgend, Mid Glam. Somebody's got to live here.
    If you're of "the old school" before anti-lock braking, there was a technique which was learned rather than taught called "Cadence Braking". This was a method of applying the brakes in short sharp stabs so that the wheel were given a chance to restart rotating if one or more had locked and was skidding.
    ABS takes that technique and has automated it as well as increasing the speed of braking force application. It will feel like a vibration under your brake pedal while the brakes are being applied and released very rapidly. I have looked to see if I can find out the actual application rate but there doesn't seem to be any information, suffice to say that the best way to describe it verbally is "Brrrrrrrrrrrrrr".
    The traction control and the hill descent system are also under control of the ABS system too.
     
  7. Bobdog

    Bobdog Well-Known Member

    Joined:
    May 1, 2012
    Posts:
    4,136
    Likes Received:
    4,958
    Location:
    Horsham West Sussex
    Can you describe under what conditions/situations this happens?
     
  8. jamesmartin

    jamesmartin Well-Known Member

    Joined:
    Dec 8, 2010
    Posts:
    91,883
    Likes Received:
    20,278
    Location:
    louth lincs
    no but the traction control light would if it was activating, the pump does have an odd noise
     
  9. neilly

    neilly Well-Known Member Full Member

    Joined:
    Jan 10, 2011
    Posts:
    20,016
    Likes Received:
    10,443
    Location:
    Oxfordshireness
    Are you saying a light does come on , when you hear the noise?

    Cheers
     
  10. Trekex8

    Trekex8 Member

    Joined:
    Oct 17, 2016
    Posts:
    17
    Likes Received:
    0
    Location:
    Cumbernauld
    Hi guys thanks for all your advice,
    I can't say I have noticed any pattern of when it happens. I understand how abs works (basically) just pedal feel is more like a clunk clunk noise.
     
  11. Trekex8

    Trekex8 Member

    Joined:
    Oct 17, 2016
    Posts:
    17
    Likes Received:
    0
    Location:
    Cumbernauld
    #Neilly no lights sorry for the misleading info
     
  12. Bobdog

    Bobdog Well-Known Member

    Joined:
    May 1, 2012
    Posts:
    4,136
    Likes Received:
    4,958
    Location:
    Horsham West Sussex
    Well ABS feels almost like intermittent 'brake failure' and a definite thump, thump through the pedal (which can seem unnerving as it won't let you brake as hard as you would like to) and as Brian said, TC is like a "brrrrrr" but the light would come on. If it's more of a vibration under steady braking it could be a warped disc but then again, that would happen every time you braked.
     
  13. Trekex8

    Trekex8 Member

    Joined:
    Oct 17, 2016
    Posts:
    17
    Likes Received:
    0
    Location:
    Cumbernauld
    Thanks bobdog sound like what I'm getting. I will monitor over the next few weeks. As you say it's a bit unnerving.
    Thanks to all you guys
    Nielly Brian47 Jamesmartin bobdog
     
< Previous Thread | Next Thread >