displaying posts 1 to 14 of 14

Author Subject: brake peddal bouncing
foxy6

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Location: cumbria

Registered: 01 May 2010

Posts: 168

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Post #1
hi guys as above really i changed front discs and pads and all been ok. now today brake pedal started bouncing back at me and i nearnly went into the beck of someoneCrazy
whats wrong, does it maybe needing bleeding
Posted 22nd May 2010 at 22:53
khj100

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Location: York

Registered: 30 Mar 2003

Posts: 11,171

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Post #2
Bouncing!?

Sounds like the ABS kicked in?

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Posted 22nd May 2010 at 23:03
foxy6

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Location: cumbria

Registered: 01 May 2010

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Post #3
thats what i thought but why would it when driving normal could it be on its way out
Posted 22nd May 2010 at 23:07
monkeyman

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Location: Sunny St Albans

Registered: 01 Oct 2008

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Post #4
Are the sensors/rings clear and clean?

I've only had this happen occasionally on very hard braking.

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Posted 23rd May 2010 at 16:44
foxy6

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Location: cumbria

Registered: 01 May 2010

Posts: 168

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Post #5
hi guys local mechanic looked at this problem today he said when he test drove it that it felt like the rear was braking harder than the front, and then said he cant find why the abs is playing up, but he said he has disconnected it and feels like the front brakes better than rear now, and said dont plug abs back in and happy daysWhistle
is this safeUnsure he normally is a good mechanic that i have used before but this is just a cowboys answer is it not, please help
Posted 25th May 2010 at 17:57
oecken

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Location: Mt Cook, New Zealand

Registered: 17 Feb 2009

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Post #6
no air trapped in the system when re-bleeding?

mine got air in and has similar symptoms, ABS kicks in when it shouldnt, and not as quickly as it should...

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Posted 24th May 2010 at 21:54
foxy6

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Registered: 01 May 2010

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Post #7
oecken wrote:
no air trapped in the system when re-bleeding?

mine got air in and has similar symptoms, ABS kicks in when it shouldnt, and not as quickly as it should...


see i asked him to bleed system and he said no as thats got nothing to do with the abs playing upUnsure
Posted 24th May 2010 at 22:00
oecken

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Location: Mt Cook, New Zealand

Registered: 17 Feb 2009

Posts: 4,751

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Post #8
well the only reason im saying it is because when my system was rebled, realised both brake nipples had snapped so was bled from the lines, caused air to get in now braking is a joke, and ABS is not as it should be,

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Sad Ex-Black 6 Ninja - Speed has never killed anyone, suddenly becoming stationary... That's what gets you.
Posted 24th May 2010 at 22:25
foxy6

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Location: cumbria

Registered: 01 May 2010

Posts: 168

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Post #9
oecken wrote:
well the only reason im saying it is because when my system was rebled, realised both brake nipples had snapped so was bled from the lines, caused air to get in now braking is a joke, and ABS is not as it should be,


i aint doubting you mate but not sure this mechanic is that good anymore and wont be going backAngry
i shall see if my mate can bleed brakes tomorrow if the dreaded nipples come off okWhistle
Posted 24th May 2010 at 22:34
oecken

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Location: Mt Cook, New Zealand

Registered: 17 Feb 2009

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Post #10
i hope you mean dont snap off LOL

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Posted 24th May 2010 at 22:44
foxy6

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Location: cumbria

Registered: 01 May 2010

Posts: 168

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Post #11
oecken wrote:
i hope you mean dont snap off LOL


yes wat else would i meanLOL
any tips on not snapping them mate
Posted 24th May 2010 at 22:46
buzzbrightyear

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Location: hiding all receipts for car

Registered: 09 Jul 2008

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Post #12
the rear is braking harder than the back Laugh my ass off
use plenty of wd40 over a couple of days before you remove the nips.

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Posted 25th May 2010 at 05:05
tvrfan007

Seasoned Pro

Location: In the garage

Registered: 29 May 2005

Posts: 3,488

Status: Offline

Post #13
If the pedal is vibrating under your foot, it's the ABS activating. If you're not braking hard enough to lock a wheel and it does it, then I would suggest you're suffering from an incorrect sensor air gap or, more likely, a cracked ABS reluctor ring.

The cracks only have to be hairline to confuse the ABS when counting pulses. Pull the ABS fuse and test the brakes out then, you'll probably find it brakes as it should (to the point of lock-up). You won't pass an MOT with no ABS though so you need to fix it.

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Posted 25th May 2010 at 17:13
foxy6

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Location: cumbria

Registered: 01 May 2010

Posts: 168

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Post #14
andy+katie wrote:
the rear is braking harder than the back Laugh my ass off

edited nowLOL
cheers for advice guysBig grin
Posted 25th May 2010 at 17:59

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