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o4dn

Member Since: 08 Jan 2010
Location: South West
Posts: 548

2009 Defender 90 Puma 2.4 SW Alaska White

“Clang” when stumping hard on the brake pedal

I noticed that, with the engine off, car standing still, if I press the brake pedal hard enough, I can hear a noticeable “clang” that I can also feel through the pedal. It seems to happen when releasing the pedal...

The car brakes fine though, but I wonder if that's something I should be worried about... it's a MY09 2.4 Puma with 60k miles on the clock.

Cheers! “A Land Rover immobilized is a moral defeat for the driver and bad publicity for the vehicle, […] it's up to you to do justice to your Land Rover!” - Land Rover Driving Technique.
--
2009 2.4 Puma Defender 90 SW
1979 Land Rover Series 3 88"

26th Mar 2018 9:13am

jst

Member Since: 14 Jan 2008
Location: Taunton
Posts: 8145

2011 Defender 110 Puma 2.4 USW Stornoway Grey

rattly brake pads? Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop

26th Mar 2018 11:28am

o4dn

Member Since: 08 Jan 2010
Location: South West
Posts: 548

Would rattly brake pads cause such a noise even when the wheels aren't spinning? “A Land Rover immobilized is a moral defeat for the driver and bad publicity for the vehicle, […] it's up to you to do justice to your Land Rover!” - Land Rover Driving Technique.
--
2009 2.4 Puma Defender 90 SW
1979 Land Rover Series 3 88"

27th Mar 2018 9:30am

Balvaig

Member Since: 19 Feb 2016
Location: Fife
Posts: 733

2016 Defender 90 Puma 2.2 Landmark LE Corris Grey

Just guessing here, but when you actuate the brakes with the engine off you release the residual vacuum from the servo. Could it be the springs in the servo rebounding when you release the pedal?

27th Mar 2018 12:05pm

srod

Member Since: 20 Mar 2015
Location: Argyll
Posts: 190

Yep anything involving brakes and abnormal behavoir is worth worrying about...

Can you have a closer listen, get someone to press the pedal while you go round all four corners try and find out exactly where it's coming from?

27th Mar 2018 7:05pm

jst

Member Since: 14 Jan 2008
Location: Taunton
Posts: 8145

o4dn wrote:
Would rattly brake pads cause such a noise even when the wheels aren't spinning?

yes, actuation of brake pedal pushes pistons out which pushes pad to contact disc irrespective of whether disc is moving or not. Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop

27th Mar 2018 8:03pm

o4dn

Member Since: 08 Jan 2010
Location: South West
Posts: 548

Sounds (and feels) like a spring, seems to be coming close to the pedal itself, possibly from the servo, but not sure... I don't think this is remaining vacuum in the servo because it happens every time, just just once. “A Land Rover immobilized is a moral defeat for the driver and bad publicity for the vehicle, […] it's up to you to do justice to your Land Rover!” - Land Rover Driving Technique.
--
2009 2.4 Puma Defender 90 SW
1979 Land Rover Series 3 88"

28th Mar 2018 8:38am

jst

Member Since: 14 Jan 2008
Location: Taunton
Posts: 8145

the spring that returns the pedal hasnt broken one arm has it? Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop

28th Mar 2018 7:24pm

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