Pulsing Brake Pedal

SCOTSMAN · Dec 15, 2015

Hi Guys
I have a 2005 defender td5 90. Just recently when braking heavily the brake pedal seems to pulse there is no shake or vibrations through the steering wheel. I changed all the discs, pads and front calipers last October it has done about 4000 miles since. Any ideas anyone.

Kwakerman · Dec 15, 2015

ABS kicking in (assuming you have ABS obviously)

SCOTSMAN · Dec 15, 2015

No, no ABS.

mickyh · Dec 15, 2015

SCOTSMAN said:
No, no ABS.

mickyh · Dec 15, 2015

warped disc or wheel bearing??

Dippypud · Dec 15, 2015

What he said ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

SCOTSMAN · Dec 15, 2015

A warped disc would vibrate through the steering surely will look at the wheel bearings

flat · Dec 15, 2015

Wheel bearing IMO

Al2O3 · Dec 15, 2015

I have had a warped disc do this. However, given it's 14 months since you changed the discs and you've only done 4000 miles it may be due to corrosion. When the surface of the disc corrodes it gets thicker, this thicker patch can glaze over with subsequent braking and so you can end up with a pulse through the pedal as the thicker part of the disc passes the pads. What sort or quality were the disc?

SCOTSMAN · Dec 15, 2015

The discs look alright . It gets used most days just doesn't do a lot of mileage. I will have a good look at the discs.

Al2O3 · Dec 15, 2015

Worth jacking each side up at a time. Check the disc visual and feel on the back of the disc. Give the wheel a waggle while its up to check the bearings.

SCOTSMAN · Dec 15, 2015

Will do. thanks Muchly.

d8moa · Dec 15, 2015

Rear discs warped

zeaphod · Dec 16, 2015

I was thinking rear disc too.

satchmolips · Dec 19, 2015

I had this and it took me ages to find the problem. It was old tyres and the wall had gone out of shape on them

Pulsing Brake Pedal

SCOTSMAN

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Kwakerman

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SCOTSMAN

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mickyh

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mickyh

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Dippypud

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SCOTSMAN

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flat

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Al2O3

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SCOTSMAN

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Al2O3

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SCOTSMAN

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d8moa

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zeaphod

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satchmolips

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